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Finding the Fourth Proportional to 1,120,500, 1,680,764.58 and 372,546

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Solution

The fourth proportional to 1,120,500, 1,680,764.58 and 372,546 is: 558,823.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,500 : 1,680,764.58 = 372,546 : x
  2. Step 2: Convert to fraction form
    1,120,500/1,680,764.58 = 372,546/x
  3. Step 3: Cross multiply
    1,120,500x = 1,680,764.58 × 372,546
  4. Step 4: Simplify right side
    1,120,500x = 626,162,121,220.68
  5. Step 5: Solve for x
    x = 626,162,121,220.68/1,120,500
  6. Step 6: Final answer
    x = 558,823.85

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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.