Home / 791,341.80-1,091,449.14-681,148.02

Finding the Fourth Proportional to 791,341.80, 1,091,449.14 and 681,148.02

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Solution

The fourth proportional to 791,341.80, 1,091,449.14 and 681,148.02 is: 939,465.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,341.80 : 1,091,449.14 = 681,148.02 : x
  2. Step 2: Convert to fraction form
    791,341.80/1,091,449.14 = 681,148.02/x
  3. Step 3: Cross multiply
    791,341.80x = 1,091,449.14 × 681,148.02
  4. Step 4: Simplify right side
    791,341.80x = 743,438,420,641.70
  5. Step 5: Solve for x
    x = 743,438,420,641.70/791,341.80
  6. Step 6: Final answer
    x = 939,465.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.