Home / 990,337.78-1,366,677.12-560,608.48

Finding the Fourth Proportional to 990,337.78, 1,366,677.12 and 560,608.48

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Solution

The fourth proportional to 990,337.78, 1,366,677.12 and 560,608.48 is: 773,645.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,337.78 : 1,366,677.12 = 560,608.48 : x
  2. Step 2: Convert to fraction form
    990,337.78/1,366,677.12 = 560,608.48/x
  3. Step 3: Cross multiply
    990,337.78x = 1,366,677.12 × 560,608.48
  4. Step 4: Simplify right side
    990,337.78x = 766,170,782,893.98
  5. Step 5: Solve for x
    x = 766,170,782,893.98/990,337.78
  6. Step 6: Final answer
    x = 773,645.92

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.