Home / 988,445.78-1,480,976.14-539,481.68

Finding the Fourth Proportional to 988,445.78, 1,480,976.14 and 539,481.68

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Solution

The fourth proportional to 988,445.78, 1,480,976.14 and 539,481.68 is: 808,298.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,445.78 : 1,480,976.14 = 539,481.68 : x
  2. Step 2: Convert to fraction form
    988,445.78/1,480,976.14 = 539,481.68/x
  3. Step 3: Cross multiply
    988,445.78x = 1,480,976.14 × 539,481.68
  4. Step 4: Simplify right side
    988,445.78x = 798,959,498,400.85
  5. Step 5: Solve for x
    x = 798,959,498,400.85/988,445.78
  6. Step 6: Final answer
    x = 808,298.76

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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.