Home / 852,955.40-1,278,849.90-403,891.40

Finding the Fourth Proportional to 852,955.40, 1,278,849.90 and 403,891.40

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Solution

The fourth proportional to 852,955.40, 1,278,849.90 and 403,891.40 is: 605,560.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,955.40 : 1,278,849.90 = 403,891.40 : x
  2. Step 2: Convert to fraction form
    852,955.40/1,278,849.90 = 403,891.40/x
  3. Step 3: Cross multiply
    852,955.40x = 1,278,849.90 × 403,891.40
  4. Step 4: Simplify right side
    852,955.40x = 516,516,476,500.86
  5. Step 5: Solve for x
    x = 516,516,476,500.86/852,955.40
  6. Step 6: Final answer
    x = 605,560.94

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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.