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Finding the Fourth Proportional to 580,505.31, 870,767.99 and 201,439.28

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Solution

The fourth proportional to 580,505.31, 870,767.99 and 201,439.28 is: 302,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,505.31 : 870,767.99 = 201,439.28 : x
  2. Step 2: Convert to fraction form
    580,505.31/870,767.99 = 201,439.28/x
  3. Step 3: Cross multiply
    580,505.31x = 870,767.99 × 201,439.28
  4. Step 4: Simplify right side
    580,505.31x = 175,406,876,952.65
  5. Step 5: Solve for x
    x = 175,406,876,952.65/580,505.31
  6. Step 6: Final answer
    x = 302,162.40

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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.