Home / 1,080,201.52-1,490,678.08-627,521.68

Finding the Fourth Proportional to 1,080,201.52, 1,490,678.08 and 627,521.68

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Solution

The fourth proportional to 1,080,201.52, 1,490,678.08 and 627,521.68 is: 865,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,201.52 : 1,490,678.08 = 627,521.68 : x
  2. Step 2: Convert to fraction form
    1,080,201.52/1,490,678.08 = 627,521.68/x
  3. Step 3: Cross multiply
    1,080,201.52x = 1,490,678.08 × 627,521.68
  4. Step 4: Simplify right side
    1,080,201.52x = 935,432,813,100.78
  5. Step 5: Solve for x
    x = 935,432,813,100.78/1,080,201.52
  6. Step 6: Final answer
    x = 865,979.91

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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.