Home / 1,324,442.40-1,985,281.20-724,480.80

Finding the Fourth Proportional to 1,324,442.40, 1,985,281.20 and 724,480.80

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Solution

The fourth proportional to 1,324,442.40, 1,985,281.20 and 724,480.80 is: 1,085,965.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,442.40 : 1,985,281.20 = 724,480.80 : x
  2. Step 2: Convert to fraction form
    1,324,442.40/1,985,281.20 = 724,480.80/x
  3. Step 3: Cross multiply
    1,324,442.40x = 1,985,281.20 × 724,480.80
  4. Step 4: Simplify right side
    1,324,442.40x = 1,438,298,112,000.96
  5. Step 5: Solve for x
    x = 1,438,298,112,000.96/1,324,442.40
  6. Step 6: Final answer
    x = 1,085,965.02

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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.