Home / 1,120,100.50-1,680,319.23-361,687.78

Finding the Fourth Proportional to 1,120,100.50, 1,680,319.23 and 361,687.78

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Solution

The fourth proportional to 1,120,100.50, 1,680,319.23 and 361,687.78 is: 542,586.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,100.50 : 1,680,319.23 = 361,687.78 : x
  2. Step 2: Convert to fraction form
    1,120,100.50/1,680,319.23 = 361,687.78/x
  3. Step 3: Cross multiply
    1,120,100.50x = 1,680,319.23 × 361,687.78
  4. Step 4: Simplify right side
    1,120,100.50x = 607,750,931,990.01
  5. Step 5: Solve for x
    x = 607,750,931,990.01/1,120,100.50
  6. Step 6: Final answer
    x = 542,586.07

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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.