Home / 724,979.10-1,086,869.89-319,882.89

Finding the Fourth Proportional to 724,979.10, 1,086,869.89 and 319,882.89

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Solution

The fourth proportional to 724,979.10, 1,086,869.89 and 319,882.89 is: 479,560.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,979.10 : 1,086,869.89 = 319,882.89 : x
  2. Step 2: Convert to fraction form
    724,979.10/1,086,869.89 = 319,882.89/x
  3. Step 3: Cross multiply
    724,979.10x = 1,086,869.89 × 319,882.89
  4. Step 4: Simplify right side
    724,979.10x = 347,671,081,467.18
  5. Step 5: Solve for x
    x = 347,671,081,467.18/724,979.10
  6. Step 6: Final answer
    x = 479,560.14

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1.5x scale

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.