Home / 1,399,235.48-1,930,796.04-787,377.58

Finding the Fourth Proportional to 1,399,235.48, 1,930,796.04 and 787,377.58

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Solution

The fourth proportional to 1,399,235.48, 1,930,796.04 and 787,377.58 is: 1,086,497.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,235.48 : 1,930,796.04 = 787,377.58 : x
  2. Step 2: Convert to fraction form
    1,399,235.48/1,930,796.04 = 787,377.58/x
  3. Step 3: Cross multiply
    1,399,235.48x = 1,930,796.04 × 787,377.58
  4. Step 4: Simplify right side
    1,399,235.48x = 1,520,265,513,448.78
  5. Step 5: Solve for x
    x = 1,520,265,513,448.78/1,399,235.48
  6. Step 6: Final answer
    x = 1,086,497.26

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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.