Home / 993,431.40-1,488,616.20-739,520.70

Finding the Fourth Proportional to 993,431.40, 1,488,616.20 and 739,520.70

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Solution

The fourth proportional to 993,431.40, 1,488,616.20 and 739,520.70 is: 1,108,141.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,431.40 : 1,488,616.20 = 739,520.70 : x
  2. Step 2: Convert to fraction form
    993,431.40/1,488,616.20 = 739,520.70/x
  3. Step 3: Cross multiply
    993,431.40x = 1,488,616.20 × 739,520.70
  4. Step 4: Simplify right side
    993,431.40x = 1,100,862,494,255.34
  5. Step 5: Solve for x
    x = 1,100,862,494,255.34/993,431.40
  6. Step 6: Final answer
    x = 1,108,141.43

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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.