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Finding the Fourth Proportional to 618,033.96, 926,905.50 and 348,279.72

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Solution

The fourth proportional to 618,033.96, 926,905.50 and 348,279.72 is: 522,337.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,033.96 : 926,905.50 = 348,279.72 : x
  2. Step 2: Convert to fraction form
    618,033.96/926,905.50 = 348,279.72/x
  3. Step 3: Cross multiply
    618,033.96x = 926,905.50 × 348,279.72
  4. Step 4: Simplify right side
    618,033.96x = 322,822,388,006.46
  5. Step 5: Solve for x
    x = 322,822,388,006.46/618,033.96
  6. Step 6: Final answer
    x = 522,337.62

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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.