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Finding the Fourth Proportional to 870,979.04, 1,305,960 and 337,877.12

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Solution

The fourth proportional to 870,979.04, 1,305,960 and 337,877.12 is: 506,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,979.04 : 1,305,960 = 337,877.12 : x
  2. Step 2: Convert to fraction form
    870,979.04/1,305,960 = 337,877.12/x
  3. Step 3: Cross multiply
    870,979.04x = 1,305,960 × 337,877.12
  4. Step 4: Simplify right side
    870,979.04x = 441,254,003,635.20
  5. Step 5: Solve for x
    x = 441,254,003,635.20/870,979.04
  6. Step 6: Final answer
    x = 506,618.40

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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.