Home / 1,079,478.40-1,619,217.60-331,427.20

Finding the Fourth Proportional to 1,079,478.40, 1,619,217.60 and 331,427.20

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Solution

The fourth proportional to 1,079,478.40, 1,619,217.60 and 331,427.20 is: 497,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,478.40 : 1,619,217.60 = 331,427.20 : x
  2. Step 2: Convert to fraction form
    1,079,478.40/1,619,217.60 = 331,427.20/x
  3. Step 3: Cross multiply
    1,079,478.40x = 1,619,217.60 × 331,427.20
  4. Step 4: Simplify right side
    1,079,478.40x = 536,652,755,358.72
  5. Step 5: Solve for x
    x = 536,652,755,358.72/1,079,478.40
  6. Step 6: Final answer
    x = 497,140.80

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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.