Home / 1,170,023.70-1,755,035.55-815,438.10

Finding the Fourth Proportional to 1,170,023.70, 1,755,035.55 and 815,438.10

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Solution

The fourth proportional to 1,170,023.70, 1,755,035.55 and 815,438.10 is: 1,223,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,023.70 : 1,755,035.55 = 815,438.10 : x
  2. Step 2: Convert to fraction form
    1,170,023.70/1,755,035.55 = 815,438.10/x
  3. Step 3: Cross multiply
    1,170,023.70x = 1,755,035.55 × 815,438.10
  4. Step 4: Simplify right side
    1,170,023.70x = 1,431,122,854,324.46
  5. Step 5: Solve for x
    x = 1,431,122,854,324.46/1,170,023.70
  6. Step 6: Final answer
    x = 1,223,157.15

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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.