Home / 709,778.18-979,435.04-403,773.14

Finding the Fourth Proportional to 709,778.18, 979,435.04 and 403,773.14

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Solution

The fourth proportional to 709,778.18, 979,435.04 and 403,773.14 is: 557,173.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,778.18 : 979,435.04 = 403,773.14 : x
  2. Step 2: Convert to fraction form
    709,778.18/979,435.04 = 403,773.14/x
  3. Step 3: Cross multiply
    709,778.18x = 979,435.04 × 403,773.14
  4. Step 4: Simplify right side
    709,778.18x = 395,469,561,526.83
  5. Step 5: Solve for x
    x = 395,469,561,526.83/709,778.18
  6. Step 6: Final answer
    x = 557,173.46

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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.