Home / 891,621.45-1,335,750.66-690,960.95

Finding the Fourth Proportional to 891,621.45, 1,335,750.66 and 690,960.95

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Solution

The fourth proportional to 891,621.45, 1,335,750.66 and 690,960.95 is: 1,035,138.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,621.45 : 1,335,750.66 = 690,960.95 : x
  2. Step 2: Convert to fraction form
    891,621.45/1,335,750.66 = 690,960.95/x
  3. Step 3: Cross multiply
    891,621.45x = 1,335,750.66 × 690,960.95
  4. Step 4: Simplify right side
    891,621.45x = 922,951,544,930.10
  5. Step 5: Solve for x
    x = 922,951,544,930.10/891,621.45
  6. Step 6: Final answer
    x = 1,035,138.34

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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.