Home / 1,189,398.14-1,641,327.76-645,523.02

Finding the Fourth Proportional to 1,189,398.14, 1,641,327.76 and 645,523.02

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Solution

The fourth proportional to 1,189,398.14, 1,641,327.76 and 645,523.02 is: 890,799.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,398.14 : 1,641,327.76 = 645,523.02 : x
  2. Step 2: Convert to fraction form
    1,189,398.14/1,641,327.76 = 645,523.02/x
  3. Step 3: Cross multiply
    1,189,398.14x = 1,641,327.76 × 645,523.02
  4. Step 4: Simplify right side
    1,189,398.14x = 1,059,514,849,217.42
  5. Step 5: Solve for x
    x = 1,059,514,849,217.42/1,189,398.14
  6. Step 6: Final answer
    x = 890,799.15

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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.