Home / 960,842.56-1,440,138.40-391,868.80

Finding the Fourth Proportional to 960,842.56, 1,440,138.40 and 391,868.80

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Solution

The fourth proportional to 960,842.56, 1,440,138.40 and 391,868.80 is: 587,344.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,842.56 : 1,440,138.40 = 391,868.80 : x
  2. Step 2: Convert to fraction form
    960,842.56/1,440,138.40 = 391,868.80/x
  3. Step 3: Cross multiply
    960,842.56x = 1,440,138.40 × 391,868.80
  4. Step 4: Simplify right side
    960,842.56x = 564,345,306,641.92
  5. Step 5: Solve for x
    x = 564,345,306,641.92/960,842.56
  6. Step 6: Final answer
    x = 587,344.20

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1.5x scale

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.