Home / 1,330,017.30-1,995,306.45-431,389.24

Finding the Fourth Proportional to 1,330,017.30, 1,995,306.45 and 431,389.24

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Solution

The fourth proportional to 1,330,017.30, 1,995,306.45 and 431,389.24 is: 647,174.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,017.30 : 1,995,306.45 = 431,389.24 : x
  2. Step 2: Convert to fraction form
    1,330,017.30/1,995,306.45 = 431,389.24/x
  3. Step 3: Cross multiply
    1,330,017.30x = 1,995,306.45 × 431,389.24
  4. Step 4: Simplify right side
    1,330,017.30x = 860,753,738,020.86
  5. Step 5: Solve for x
    x = 860,753,738,020.86/1,330,017.30
  6. Step 6: Final answer
    x = 647,174.85

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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.