Home / 394,428.10-591,296.55-236,488.90

Finding the Fourth Proportional to 394,428.10, 591,296.55 and 236,488.90

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Solution

The fourth proportional to 394,428.10, 591,296.55 and 236,488.90 is: 354,526.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,428.10 : 591,296.55 = 236,488.90 : x
  2. Step 2: Convert to fraction form
    394,428.10/591,296.55 = 236,488.90/x
  3. Step 3: Cross multiply
    394,428.10x = 591,296.55 × 236,488.90
  4. Step 4: Simplify right side
    394,428.10x = 139,835,070,683.30
  5. Step 5: Solve for x
    x = 139,835,070,683.30/394,428.10
  6. Step 6: Final answer
    x = 354,526.14

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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.