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Finding the Fourth Proportional to 1,120,524, 1,680,800.64 and 372,570

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Solution

The fourth proportional to 1,120,524, 1,680,800.64 and 372,570 is: 558,859.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,524 : 1,680,800.64 = 372,570 : x
  2. Step 2: Convert to fraction form
    1,120,524/1,680,800.64 = 372,570/x
  3. Step 3: Cross multiply
    1,120,524x = 1,680,800.64 × 372,570
  4. Step 4: Simplify right side
    1,120,524x = 626,215,894,444.80
  5. Step 5: Solve for x
    x = 626,215,894,444.80/1,120,524
  6. Step 6: Final answer
    x = 558,859.87

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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.