Home / 891,620.52-1,230,436.18-509,655.50

Finding the Fourth Proportional to 891,620.52, 1,230,436.18 and 509,655.50

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Solution

The fourth proportional to 891,620.52, 1,230,436.18 and 509,655.50 is: 703,324.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,620.52 : 1,230,436.18 = 509,655.50 : x
  2. Step 2: Convert to fraction form
    891,620.52/1,230,436.18 = 509,655.50/x
  3. Step 3: Cross multiply
    891,620.52x = 1,230,436.18 × 509,655.50
  4. Step 4: Simplify right side
    891,620.52x = 627,098,566,535.99
  5. Step 5: Solve for x
    x = 627,098,566,535.99/891,620.52
  6. Step 6: Final answer
    x = 703,324.51

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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.