Home / 1,008,498.20-1,391,727.52-555,789.20

Finding the Fourth Proportional to 1,008,498.20, 1,391,727.52 and 555,789.20

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Solution

The fourth proportional to 1,008,498.20, 1,391,727.52 and 555,789.20 is: 766,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,498.20 : 1,391,727.52 = 555,789.20 : x
  2. Step 2: Convert to fraction form
    1,008,498.20/1,391,727.52 = 555,789.20/x
  3. Step 3: Cross multiply
    1,008,498.20x = 1,391,727.52 × 555,789.20
  4. Step 4: Simplify right side
    1,008,498.20x = 773,507,124,958.78
  5. Step 5: Solve for x
    x = 773,507,124,958.78/1,008,498.20
  6. Step 6: Final answer
    x = 766,989.10

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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.