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Finding the Fourth Proportional to 566,489.88, 781,765.98 and 308,374.25

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Solution

The fourth proportional to 566,489.88, 781,765.98 and 308,374.25 is: 425,561.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,489.88 : 781,765.98 = 308,374.25 : x
  2. Step 2: Convert to fraction form
    566,489.88/781,765.98 = 308,374.25/x
  3. Step 3: Cross multiply
    566,489.88x = 781,765.98 × 308,374.25
  4. Step 4: Simplify right side
    566,489.88x = 241,076,497,758.02
  5. Step 5: Solve for x
    x = 241,076,497,758.02/566,489.88
  6. Step 6: Final answer
    x = 425,561.88

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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.