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Finding the Fourth Proportional to 522,045.60, 781,318.80 and 522,045.60

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Solution

The fourth proportional to 522,045.60, 781,318.80 and 522,045.60 is: 781,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,045.60 : 781,318.80 = 522,045.60 : x
  2. Step 2: Convert to fraction form
    522,045.60/781,318.80 = 522,045.60/x
  3. Step 3: Cross multiply
    522,045.60x = 781,318.80 × 522,045.60
  4. Step 4: Simplify right side
    522,045.60x = 407,884,041,737.28
  5. Step 5: Solve for x
    x = 407,884,041,737.28/522,045.60
  6. Step 6: Final answer
    x = 781,318.80

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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.