Home / 791,565.39-1,186,643.36-286,013.61

Finding the Fourth Proportional to 791,565.39, 1,186,643.36 and 286,013.61

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Solution

The fourth proportional to 791,565.39, 1,186,643.36 and 286,013.61 is: 428,765.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,565.39 : 1,186,643.36 = 286,013.61 : x
  2. Step 2: Convert to fraction form
    791,565.39/1,186,643.36 = 286,013.61/x
  3. Step 3: Cross multiply
    791,565.39x = 1,186,643.36 × 286,013.61
  4. Step 4: Simplify right side
    791,565.39x = 339,396,151,891.16
  5. Step 5: Solve for x
    x = 339,396,151,891.16/791,565.39
  6. Step 6: Final answer
    x = 428,765.78

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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.