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Finding the Fourth Proportional to 514,575.10, 721,454.90 and 514,575.10

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Solution

The fourth proportional to 514,575.10, 721,454.90 and 514,575.10 is: 721,454.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,575.10 : 721,454.90 = 514,575.10 : x
  2. Step 2: Convert to fraction form
    514,575.10/721,454.90 = 514,575.10/x
  3. Step 3: Cross multiply
    514,575.10x = 721,454.90 × 514,575.10
  4. Step 4: Simplify right side
    514,575.10x = 371,242,727,312.99
  5. Step 5: Solve for x
    x = 371,242,727,312.99/514,575.10
  6. Step 6: Final answer
    x = 721,454.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.