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Finding the Fourth Proportional to 1,120,554, 1,680,845.58 and 372,600

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Solution

The fourth proportional to 1,120,554, 1,680,845.58 and 372,600 is: 558,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,554 : 1,680,845.58 = 372,600 : x
  2. Step 2: Convert to fraction form
    1,120,554/1,680,845.58 = 372,600/x
  3. Step 3: Cross multiply
    1,120,554x = 1,680,845.58 × 372,600
  4. Step 4: Simplify right side
    1,120,554x = 626,283,063,108
  5. Step 5: Solve for x
    x = 626,283,063,108/1,120,554
  6. Step 6: Final answer
    x = 558,904.85

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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.