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Finding the Fourth Proportional to 870,487.15, 1,305,790.71 and 364,538.71

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Solution

The fourth proportional to 870,487.15, 1,305,790.71 and 364,538.71 is: 546,833.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,487.15 : 1,305,790.71 = 364,538.71 : x
  2. Step 2: Convert to fraction form
    870,487.15/1,305,790.71 = 364,538.71/x
  3. Step 3: Cross multiply
    870,487.15x = 1,305,790.71 × 364,538.71
  4. Step 4: Simplify right side
    870,487.15x = 476,011,260,953.38
  5. Step 5: Solve for x
    x = 476,011,260,953.38/870,487.15
  6. Step 6: Final answer
    x = 546,833.19

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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.