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Finding the Fourth Proportional to 482,669.40, 724,004.10 and 445,344.60

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Solution

The fourth proportional to 482,669.40, 724,004.10 and 445,344.60 is: 668,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,669.40 : 724,004.10 = 445,344.60 : x
  2. Step 2: Convert to fraction form
    482,669.40/724,004.10 = 445,344.60/x
  3. Step 3: Cross multiply
    482,669.40x = 724,004.10 × 445,344.60
  4. Step 4: Simplify right side
    482,669.40x = 322,431,316,312.86
  5. Step 5: Solve for x
    x = 322,431,316,312.86/482,669.40
  6. Step 6: Final answer
    x = 668,016.90

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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.