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Finding the Fourth Proportional to 602,700.56, 831,841.44 and 398,755.52

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Solution

The fourth proportional to 602,700.56, 831,841.44 and 398,755.52 is: 550,358.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,700.56 : 831,841.44 = 398,755.52 : x
  2. Step 2: Convert to fraction form
    602,700.56/831,841.44 = 398,755.52/x
  3. Step 3: Cross multiply
    602,700.56x = 831,841.44 × 398,755.52
  4. Step 4: Simplify right side
    602,700.56x = 331,701,365,964.75
  5. Step 5: Solve for x
    x = 331,701,365,964.75/602,700.56
  6. Step 6: Final answer
    x = 550,358.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.