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Finding the Fourth Proportional to 621,259.46, 930,523.22 and 513,421.22

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Solution

The fourth proportional to 621,259.46, 930,523.22 and 513,421.22 is: 769,002.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,259.46 : 930,523.22 = 513,421.22 : x
  2. Step 2: Convert to fraction form
    621,259.46/930,523.22 = 513,421.22/x
  3. Step 3: Cross multiply
    621,259.46x = 930,523.22 × 513,421.22
  4. Step 4: Simplify right side
    621,259.46x = 477,750,366,850.73
  5. Step 5: Solve for x
    x = 477,750,366,850.73/621,259.46
  6. Step 6: Final answer
    x = 769,002.97

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Double scale
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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.