Home / 1,170,200.70-1,755,301.05-638,759.70

Finding the Fourth Proportional to 1,170,200.70, 1,755,301.05 and 638,759.70

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Solution

The fourth proportional to 1,170,200.70, 1,755,301.05 and 638,759.70 is: 958,139.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,200.70 : 1,755,301.05 = 638,759.70 : x
  2. Step 2: Convert to fraction form
    1,170,200.70/1,755,301.05 = 638,759.70/x
  3. Step 3: Cross multiply
    1,170,200.70x = 1,755,301.05 × 638,759.70
  4. Step 4: Simplify right side
    1,170,200.70x = 1,121,215,572,107.69
  5. Step 5: Solve for x
    x = 1,121,215,572,107.69/1,170,200.70
  6. Step 6: Final answer
    x = 958,139.55

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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.