Home / 755,398.72-1,132,765.57-400,329.55

Finding the Fourth Proportional to 755,398.72, 1,132,765.57 and 400,329.55

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Solution

The fourth proportional to 755,398.72, 1,132,765.57 and 400,329.55 is: 600,318.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,398.72 : 1,132,765.57 = 400,329.55 : x
  2. Step 2: Convert to fraction form
    755,398.72/1,132,765.57 = 400,329.55/x
  3. Step 3: Cross multiply
    755,398.72x = 1,132,765.57 × 400,329.55
  4. Step 4: Simplify right side
    755,398.72x = 453,479,531,436.65
  5. Step 5: Solve for x
    x = 453,479,531,436.65/755,398.72
  6. Step 6: Final answer
    x = 600,318.11

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1.5x scale

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.