Home / 928,908.61-1,281,791.36-520,926.48

Finding the Fourth Proportional to 928,908.61, 1,281,791.36 and 520,926.48

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Solution

The fourth proportional to 928,908.61, 1,281,791.36 and 520,926.48 is: 718,821.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,908.61 : 1,281,791.36 = 520,926.48 : x
  2. Step 2: Convert to fraction form
    928,908.61/1,281,791.36 = 520,926.48/x
  3. Step 3: Cross multiply
    928,908.61x = 1,281,791.36 × 520,926.48
  4. Step 4: Simplify right side
    928,908.61x = 667,719,062,561.53
  5. Step 5: Solve for x
    x = 667,719,062,561.53/928,908.61
  6. Step 6: Final answer
    x = 718,821.05

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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.