Home / 521,210.20-781,929.96-296,676.40

Finding the Fourth Proportional to 521,210.20, 781,929.96 and 296,676.40

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Solution

The fourth proportional to 521,210.20, 781,929.96 and 296,676.40 is: 445,079.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,210.20 : 781,929.96 = 296,676.40 : x
  2. Step 2: Convert to fraction form
    521,210.20/781,929.96 = 296,676.40/x
  3. Step 3: Cross multiply
    521,210.20x = 781,929.96 × 296,676.40
  4. Step 4: Simplify right side
    521,210.20x = 231,980,165,584.94
  5. Step 5: Solve for x
    x = 231,980,165,584.94/521,210.20
  6. Step 6: Final answer
    x = 445,079.87

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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.