Home / 1,358,506.38-1,876,383.02-990,400.57

Finding the Fourth Proportional to 1,358,506.38, 1,876,383.02 and 990,400.57

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Solution

The fourth proportional to 1,358,506.38, 1,876,383.02 and 990,400.57 is: 1,367,951.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,506.38 : 1,876,383.02 = 990,400.57 : x
  2. Step 2: Convert to fraction form
    1,358,506.38/1,876,383.02 = 990,400.57/x
  3. Step 3: Cross multiply
    1,358,506.38x = 1,876,383.02 × 990,400.57
  4. Step 4: Simplify right side
    1,358,506.38x = 1,858,370,812,546.32
  5. Step 5: Solve for x
    x = 1,858,370,812,546.32/1,358,506.38
  6. Step 6: Final answer
    x = 1,367,951.48

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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.