Home / 1,390,081.74-2,085,294.33-491,338.14

Finding the Fourth Proportional to 1,390,081.74, 2,085,294.33 and 491,338.14

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Solution

The fourth proportional to 1,390,081.74, 2,085,294.33 and 491,338.14 is: 737,067.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,081.74 : 2,085,294.33 = 491,338.14 : x
  2. Step 2: Convert to fraction form
    1,390,081.74/2,085,294.33 = 491,338.14/x
  3. Step 3: Cross multiply
    1,390,081.74x = 2,085,294.33 × 491,338.14
  4. Step 4: Simplify right side
    1,390,081.74x = 1,024,584,637,454.75
  5. Step 5: Solve for x
    x = 1,024,584,637,454.75/1,390,081.74
  6. Step 6: Final answer
    x = 737,067.91

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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.