Home / 1,255,328.20-1,882,992.30-724,486.60

Finding the Fourth Proportional to 1,255,328.20, 1,882,992.30 and 724,486.60

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Solution

The fourth proportional to 1,255,328.20, 1,882,992.30 and 724,486.60 is: 1,086,729.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,328.20 : 1,882,992.30 = 724,486.60 : x
  2. Step 2: Convert to fraction form
    1,255,328.20/1,882,992.30 = 724,486.60/x
  3. Step 3: Cross multiply
    1,255,328.20x = 1,882,992.30 × 724,486.60
  4. Step 4: Simplify right side
    1,255,328.20x = 1,364,202,689,253.18
  5. Step 5: Solve for x
    x = 1,364,202,689,253.18/1,255,328.20
  6. Step 6: Final answer
    x = 1,086,729.90

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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.