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Finding the Fourth Proportional to 482,612.80, 724,502.40 and 479,113.60

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Solution

The fourth proportional to 482,612.80, 724,502.40 and 479,113.60 is: 719,249.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,612.80 : 724,502.40 = 479,113.60 : x
  2. Step 2: Convert to fraction form
    482,612.80/724,502.40 = 479,113.60/x
  3. Step 3: Cross multiply
    482,612.80x = 724,502.40 × 479,113.60
  4. Step 4: Simplify right side
    482,612.80x = 347,118,953,072.64
  5. Step 5: Solve for x
    x = 347,118,953,072.64/482,612.80
  6. Step 6: Final answer
    x = 719,249.37

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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.