Home / 646,836.95-969,182.79-393,350.66

Finding the Fourth Proportional to 646,836.95, 969,182.79 and 393,350.66

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Solution

The fourth proportional to 646,836.95, 969,182.79 and 393,350.66 is: 589,373.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,836.95 : 969,182.79 = 393,350.66 : x
  2. Step 2: Convert to fraction form
    646,836.95/969,182.79 = 393,350.66/x
  3. Step 3: Cross multiply
    646,836.95x = 969,182.79 × 393,350.66
  4. Step 4: Simplify right side
    646,836.95x = 381,228,690,107.14
  5. Step 5: Solve for x
    x = 381,228,690,107.14/646,836.95
  6. Step 6: Final answer
    x = 589,373.71

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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.