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Finding the Fourth Proportional to 618,566.52, 927,705 and 348,811.20

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Solution

The fourth proportional to 618,566.52, 927,705 and 348,811.20 is: 523,135.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,566.52 : 927,705 = 348,811.20 : x
  2. Step 2: Convert to fraction form
    618,566.52/927,705 = 348,811.20/x
  3. Step 3: Cross multiply
    618,566.52x = 927,705 × 348,811.20
  4. Step 4: Simplify right side
    618,566.52x = 323,593,894,296
  5. Step 5: Solve for x
    x = 323,593,894,296/618,566.52
  6. Step 6: Final answer
    x = 523,135.16

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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.