Home / 787,687.70-1,181,531.55-471,982.10

Finding the Fourth Proportional to 787,687.70, 1,181,531.55 and 471,982.10

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Solution

The fourth proportional to 787,687.70, 1,181,531.55 and 471,982.10 is: 707,973.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,687.70 : 1,181,531.55 = 471,982.10 : x
  2. Step 2: Convert to fraction form
    787,687.70/1,181,531.55 = 471,982.10/x
  3. Step 3: Cross multiply
    787,687.70x = 1,181,531.55 × 471,982.10
  4. Step 4: Simplify right side
    787,687.70x = 557,661,742,185.26
  5. Step 5: Solve for x
    x = 557,661,742,185.26/787,687.70
  6. Step 6: Final answer
    x = 707,973.15

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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.