Home / 969,979.59-1,338,108.24-753,639.12

Finding the Fourth Proportional to 969,979.59, 1,338,108.24 and 753,639.12

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Solution

The fourth proportional to 969,979.59, 1,338,108.24 and 753,639.12 is: 1,039,661.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,979.59 : 1,338,108.24 = 753,639.12 : x
  2. Step 2: Convert to fraction form
    969,979.59/1,338,108.24 = 753,639.12/x
  3. Step 3: Cross multiply
    969,979.59x = 1,338,108.24 × 753,639.12
  4. Step 4: Simplify right side
    969,979.59x = 1,008,450,716,458.35
  5. Step 5: Solve for x
    x = 1,008,450,716,458.35/969,979.59
  6. Step 6: Final answer
    x = 1,039,661.79

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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.