Home / 1,120,459.60-1,680,470.70-372,505.60

Finding the Fourth Proportional to 1,120,459.60, 1,680,470.70 and 372,505.60

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Solution

The fourth proportional to 1,120,459.60, 1,680,470.70 and 372,505.60 is: 558,685.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,459.60 : 1,680,470.70 = 372,505.60 : x
  2. Step 2: Convert to fraction form
    1,120,459.60/1,680,470.70 = 372,505.60/x
  3. Step 3: Cross multiply
    1,120,459.60x = 1,680,470.70 × 372,505.60
  4. Step 4: Simplify right side
    1,120,459.60x = 625,984,746,385.92
  5. Step 5: Solve for x
    x = 625,984,746,385.92/1,120,459.60
  6. Step 6: Final answer
    x = 558,685.69

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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.