Home / 1,358,502.39-1,876,377.49-990,396.56

Finding the Fourth Proportional to 1,358,502.39, 1,876,377.49 and 990,396.56

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Solution

The fourth proportional to 1,358,502.39, 1,876,377.49 and 990,396.56 is: 1,367,945.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,502.39 : 1,876,377.49 = 990,396.56 : x
  2. Step 2: Convert to fraction form
    1,358,502.39/1,876,377.49 = 990,396.56/x
  3. Step 3: Cross multiply
    1,358,502.39x = 1,876,377.49 × 990,396.56
  4. Step 4: Simplify right side
    1,358,502.39x = 1,858,357,813,572.39
  5. Step 5: Solve for x
    x = 1,858,357,813,572.39/1,358,502.39
  6. Step 6: Final answer
    x = 1,367,945.93

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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.