Home / 692,683.20-1,038,517.92-219,103.68

Finding the Fourth Proportional to 692,683.20, 1,038,517.92 and 219,103.68

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Solution

The fourth proportional to 692,683.20, 1,038,517.92 and 219,103.68 is: 328,495.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,683.20 : 1,038,517.92 = 219,103.68 : x
  2. Step 2: Convert to fraction form
    692,683.20/1,038,517.92 = 219,103.68/x
  3. Step 3: Cross multiply
    692,683.20x = 1,038,517.92 × 219,103.68
  4. Step 4: Simplify right side
    692,683.20x = 227,543,098,017.95
  5. Step 5: Solve for x
    x = 227,543,098,017.95/692,683.20
  6. Step 6: Final answer
    x = 328,495.19

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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.