Home / 1,078,887.40-1,618,331.10-330,836.20

Finding the Fourth Proportional to 1,078,887.40, 1,618,331.10 and 330,836.20

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Solution

The fourth proportional to 1,078,887.40, 1,618,331.10 and 330,836.20 is: 496,254.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,887.40 : 1,618,331.10 = 330,836.20 : x
  2. Step 2: Convert to fraction form
    1,078,887.40/1,618,331.10 = 330,836.20/x
  3. Step 3: Cross multiply
    1,078,887.40x = 1,618,331.10 × 330,836.20
  4. Step 4: Simplify right side
    1,078,887.40x = 535,402,511,465.82
  5. Step 5: Solve for x
    x = 535,402,511,465.82/1,078,887.40
  6. Step 6: Final answer
    x = 496,254.30

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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.