Home / 858,546.28-1,287,819.40-297,580.76

Finding the Fourth Proportional to 858,546.28, 1,287,819.40 and 297,580.76

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Solution

The fourth proportional to 858,546.28, 1,287,819.40 and 297,580.76 is: 446,371.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,546.28 : 1,287,819.40 = 297,580.76 : x
  2. Step 2: Convert to fraction form
    858,546.28/1,287,819.40 = 297,580.76/x
  3. Step 3: Cross multiply
    858,546.28x = 1,287,819.40 × 297,580.76
  4. Step 4: Simplify right side
    858,546.28x = 383,230,275,794.74
  5. Step 5: Solve for x
    x = 383,230,275,794.74/858,546.28
  6. Step 6: Final answer
    x = 446,371.13

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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.