Home / 681,920.80-1,020,912.90-603,188.80

Finding the Fourth Proportional to 681,920.80, 1,020,912.90 and 603,188.80

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Solution

The fourth proportional to 681,920.80, 1,020,912.90 and 603,188.80 is: 903,042.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,920.80 : 1,020,912.90 = 603,188.80 : x
  2. Step 2: Convert to fraction form
    681,920.80/1,020,912.90 = 603,188.80/x
  3. Step 3: Cross multiply
    681,920.80x = 1,020,912.90 × 603,188.80
  4. Step 4: Simplify right side
    681,920.80x = 615,803,227,055.52
  5. Step 5: Solve for x
    x = 615,803,227,055.52/681,920.80
  6. Step 6: Final answer
    x = 903,042.15

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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.