Home / 672,441.60-1,008,662.40-514,977.60

Finding the Fourth Proportional to 672,441.60, 1,008,662.40 and 514,977.60

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Solution

The fourth proportional to 672,441.60, 1,008,662.40 and 514,977.60 is: 772,466.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,441.60 : 1,008,662.40 = 514,977.60 : x
  2. Step 2: Convert to fraction form
    672,441.60/1,008,662.40 = 514,977.60/x
  3. Step 3: Cross multiply
    672,441.60x = 1,008,662.40 × 514,977.60
  4. Step 4: Simplify right side
    672,441.60x = 519,438,541,962.24
  5. Step 5: Solve for x
    x = 519,438,541,962.24/672,441.60
  6. Step 6: Final answer
    x = 772,466.40

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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.