Home / 522,052.20-781,328.70-459,066.60

Finding the Fourth Proportional to 522,052.20, 781,328.70 and 459,066.60

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Solution

The fourth proportional to 522,052.20, 781,328.70 and 459,066.60 is: 687,061.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,052.20 : 781,328.70 = 459,066.60 : x
  2. Step 2: Convert to fraction form
    522,052.20/781,328.70 = 459,066.60/x
  3. Step 3: Cross multiply
    522,052.20x = 781,328.70 × 459,066.60
  4. Step 4: Simplify right side
    522,052.20x = 358,681,909,791.42
  5. Step 5: Solve for x
    x = 358,681,909,791.42/522,052.20
  6. Step 6: Final answer
    x = 687,061.39

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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.