Home / 858,132.82-1,287,157.41-318,494.14

Finding the Fourth Proportional to 858,132.82, 1,287,157.41 and 318,494.14

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Solution

The fourth proportional to 858,132.82, 1,287,157.41 and 318,494.14 is: 477,725.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,132.82 : 1,287,157.41 = 318,494.14 : x
  2. Step 2: Convert to fraction form
    858,132.82/1,287,157.41 = 318,494.14/x
  3. Step 3: Cross multiply
    858,132.82x = 1,287,157.41 × 318,494.14
  4. Step 4: Simplify right side
    858,132.82x = 409,952,092,342.58
  5. Step 5: Solve for x
    x = 409,952,092,342.58/858,132.82
  6. Step 6: Final answer
    x = 477,725.69

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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.