Home / 1,276,723.52-1,915,073.76-488,755.52

Finding the Fourth Proportional to 1,276,723.52, 1,915,073.76 and 488,755.52

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Solution

The fourth proportional to 1,276,723.52, 1,915,073.76 and 488,755.52 is: 733,128.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,723.52 : 1,915,073.76 = 488,755.52 : x
  2. Step 2: Convert to fraction form
    1,276,723.52/1,915,073.76 = 488,755.52/x
  3. Step 3: Cross multiply
    1,276,723.52x = 1,915,073.76 × 488,755.52
  4. Step 4: Simplify right side
    1,276,723.52x = 936,002,871,407.16
  5. Step 5: Solve for x
    x = 936,002,871,407.16/1,276,723.52
  6. Step 6: Final answer
    x = 733,128.87

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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.