Home / 1,087,331.40-1,630,997.10-339,280.20

Finding the Fourth Proportional to 1,087,331.40, 1,630,997.10 and 339,280.20

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Solution

The fourth proportional to 1,087,331.40, 1,630,997.10 and 339,280.20 is: 508,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,331.40 : 1,630,997.10 = 339,280.20 : x
  2. Step 2: Convert to fraction form
    1,087,331.40/1,630,997.10 = 339,280.20/x
  3. Step 3: Cross multiply
    1,087,331.40x = 1,630,997.10 × 339,280.20
  4. Step 4: Simplify right side
    1,087,331.40x = 553,365,022,287.42
  5. Step 5: Solve for x
    x = 553,365,022,287.42/1,087,331.40
  6. Step 6: Final answer
    x = 508,920.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.