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Finding the Fourth Proportional to 619,335.44, 853,695.12 and 466,143.28

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Solution

The fourth proportional to 619,335.44, 853,695.12 and 466,143.28 is: 642,534.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,335.44 : 853,695.12 = 466,143.28 : x
  2. Step 2: Convert to fraction form
    619,335.44/853,695.12 = 466,143.28/x
  3. Step 3: Cross multiply
    619,335.44x = 853,695.12 × 466,143.28
  4. Step 4: Simplify right side
    619,335.44x = 397,944,243,356.79
  5. Step 5: Solve for x
    x = 397,944,243,356.79/619,335.44
  6. Step 6: Final answer
    x = 642,534.27

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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.