Home / 1,189,538.82-1,641,565.04-645,674.58

Finding the Fourth Proportional to 1,189,538.82, 1,641,565.04 and 645,674.58

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Solution

The fourth proportional to 1,189,538.82, 1,641,565.04 and 645,674.58 is: 891,031.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,538.82 : 1,641,565.04 = 645,674.58 : x
  2. Step 2: Convert to fraction form
    1,189,538.82/1,641,565.04 = 645,674.58/x
  3. Step 3: Cross multiply
    1,189,538.82x = 1,641,565.04 × 645,674.58
  4. Step 4: Simplify right side
    1,189,538.82x = 1,059,916,814,516.31
  5. Step 5: Solve for x
    x = 1,059,916,814,516.31/1,189,538.82
  6. Step 6: Final answer
    x = 891,031.71

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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.