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Finding the Fourth Proportional to 618,423.52, 927,622.12 and 169,144.40

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Solution

The fourth proportional to 618,423.52, 927,622.12 and 169,144.40 is: 253,713.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,423.52 : 927,622.12 = 169,144.40 : x
  2. Step 2: Convert to fraction form
    618,423.52/927,622.12 = 169,144.40/x
  3. Step 3: Cross multiply
    618,423.52x = 927,622.12 × 169,144.40
  4. Step 4: Simplify right side
    618,423.52x = 156,902,086,914.13
  5. Step 5: Solve for x
    x = 156,902,086,914.13/618,423.52
  6. Step 6: Final answer
    x = 253,713.00

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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.