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Finding the Fourth Proportional to 566,156.89, 781,304.21 and 308,036.90

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Solution

The fourth proportional to 566,156.89, 781,304.21 and 308,036.90 is: 425,095.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,156.89 : 781,304.21 = 308,036.90 : x
  2. Step 2: Convert to fraction form
    566,156.89/781,304.21 = 308,036.90/x
  3. Step 3: Cross multiply
    566,156.89x = 781,304.21 × 308,036.90
  4. Step 4: Simplify right side
    566,156.89x = 240,670,527,259.10
  5. Step 5: Solve for x
    x = 240,670,527,259.10/566,156.89
  6. Step 6: Final answer
    x = 425,095.11

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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.