Home / 1,342,777.75-2,013,945.20-431,914.65

Finding the Fourth Proportional to 1,342,777.75, 2,013,945.20 and 431,914.65

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Solution

The fourth proportional to 1,342,777.75, 2,013,945.20 and 431,914.65 is: 647,800.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342,777.75 : 2,013,945.20 = 431,914.65 : x
  2. Step 2: Convert to fraction form
    1,342,777.75/2,013,945.20 = 431,914.65/x
  3. Step 3: Cross multiply
    1,342,777.75x = 2,013,945.20 × 431,914.65
  4. Step 4: Simplify right side
    1,342,777.75x = 869,852,443,862.90
  5. Step 5: Solve for x
    x = 869,852,443,862.90/1,342,777.75
  6. Step 6: Final answer
    x = 647,800.76

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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.