Home / 681,306.30-1,021,959.45-414,929.70

Finding the Fourth Proportional to 681,306.30, 1,021,959.45 and 414,929.70

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Solution

The fourth proportional to 681,306.30, 1,021,959.45 and 414,929.70 is: 622,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,306.30 : 1,021,959.45 = 414,929.70 : x
  2. Step 2: Convert to fraction form
    681,306.30/1,021,959.45 = 414,929.70/x
  3. Step 3: Cross multiply
    681,306.30x = 1,021,959.45 × 414,929.70
  4. Step 4: Simplify right side
    681,306.30x = 424,041,328,000.67
  5. Step 5: Solve for x
    x = 424,041,328,000.67/681,306.30
  6. Step 6: Final answer
    x = 622,394.55

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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.