Home / 1,342,632.90-2,013,949.35-811,791.30

Finding the Fourth Proportional to 1,342,632.90, 2,013,949.35 and 811,791.30

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Solution

The fourth proportional to 1,342,632.90, 2,013,949.35 and 811,791.30 is: 1,217,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342,632.90 : 2,013,949.35 = 811,791.30 : x
  2. Step 2: Convert to fraction form
    1,342,632.90/2,013,949.35 = 811,791.30/x
  3. Step 3: Cross multiply
    1,342,632.90x = 2,013,949.35 × 811,791.30
  4. Step 4: Simplify right side
    1,342,632.90x = 1,634,906,560,970.66
  5. Step 5: Solve for x
    x = 1,634,906,560,970.66/1,342,632.90
  6. Step 6: Final answer
    x = 1,217,686.95

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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.