Home / 482,966.40-724,579.20-430,737.60

Finding the Fourth Proportional to 482,966.40, 724,579.20 and 430,737.60

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Solution

The fourth proportional to 482,966.40, 724,579.20 and 430,737.60 is: 646,221.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,966.40 : 724,579.20 = 430,737.60 : x
  2. Step 2: Convert to fraction form
    482,966.40/724,579.20 = 430,737.60/x
  3. Step 3: Cross multiply
    482,966.40x = 724,579.20 × 430,737.60
  4. Step 4: Simplify right side
    482,966.40x = 312,103,505,617.92
  5. Step 5: Solve for x
    x = 312,103,505,617.92/482,966.40
  6. Step 6: Final answer
    x = 646,221.98

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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.