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Finding the Fourth Proportional to 536,589.31, 740,331.77 and 321,650.95

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Solution

The fourth proportional to 536,589.31, 740,331.77 and 321,650.95 is: 443,781.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,589.31 : 740,331.77 = 321,650.95 : x
  2. Step 2: Convert to fraction form
    536,589.31/740,331.77 = 321,650.95/x
  3. Step 3: Cross multiply
    536,589.31x = 740,331.77 × 321,650.95
  4. Step 4: Simplify right side
    536,589.31x = 238,128,417,135.68
  5. Step 5: Solve for x
    x = 238,128,417,135.68/536,589.31
  6. Step 6: Final answer
    x = 443,781.52

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1.5x scale

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.