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Finding the Fourth Proportional to 658,862.28, 909,327.47 and 417,167.28

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Solution

The fourth proportional to 658,862.28, 909,327.47 and 417,167.28 is: 575,752.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,862.28 : 909,327.47 = 417,167.28 : x
  2. Step 2: Convert to fraction form
    658,862.28/909,327.47 = 417,167.28/x
  3. Step 3: Cross multiply
    658,862.28x = 909,327.47 × 417,167.28
  4. Step 4: Simplify right side
    658,862.28x = 379,341,665,203.35
  5. Step 5: Solve for x
    x = 379,341,665,203.35/658,862.28
  6. Step 6: Final answer
    x = 575,752.59

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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.