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Finding the Fourth Proportional to 704,601.43, 972,602.13 and 418,121.44

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Solution

The fourth proportional to 704,601.43, 972,602.13 and 418,121.44 is: 577,157.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,601.43 : 972,602.13 = 418,121.44 : x
  2. Step 2: Convert to fraction form
    704,601.43/972,602.13 = 418,121.44/x
  3. Step 3: Cross multiply
    704,601.43x = 972,602.13 × 418,121.44
  4. Step 4: Simplify right side
    704,601.43x = 406,665,803,142.67
  5. Step 5: Solve for x
    x = 406,665,803,142.67/704,601.43
  6. Step 6: Final answer
    x = 577,157.22

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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.