Home / 587,564.56-811,087.12-396,836.30

Finding the Fourth Proportional to 587,564.56, 811,087.12 and 396,836.30

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Solution

The fourth proportional to 587,564.56, 811,087.12 and 396,836.30 is: 547,801.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,564.56 : 811,087.12 = 396,836.30 : x
  2. Step 2: Convert to fraction form
    587,564.56/811,087.12 = 396,836.30/x
  3. Step 3: Cross multiply
    587,564.56x = 811,087.12 × 396,836.30
  4. Step 4: Simplify right side
    587,564.56x = 321,868,811,678.46
  5. Step 5: Solve for x
    x = 321,868,811,678.46/587,564.56
  6. Step 6: Final answer
    x = 547,801.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.