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Finding the Fourth Proportional to 575,030.61, 861,440.42 and 321,542.27

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Solution

The fourth proportional to 575,030.61, 861,440.42 and 321,542.27 is: 481,695.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,030.61 : 861,440.42 = 321,542.27 : x
  2. Step 2: Convert to fraction form
    575,030.61/861,440.42 = 321,542.27/x
  3. Step 3: Cross multiply
    575,030.61x = 861,440.42 × 321,542.27
  4. Step 4: Simplify right side
    575,030.61x = 276,989,508,116.55
  5. Step 5: Solve for x
    x = 276,989,508,116.55/575,030.61
  6. Step 6: Final answer
    x = 481,695.24

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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.