Home / 787,734.78-1,181,187.45-538,488.06

Finding the Fourth Proportional to 787,734.78, 1,181,187.45 and 538,488.06

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Solution

The fourth proportional to 787,734.78, 1,181,187.45 and 538,488.06 is: 807,448.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,734.78 : 1,181,187.45 = 538,488.06 : x
  2. Step 2: Convert to fraction form
    787,734.78/1,181,187.45 = 538,488.06/x
  3. Step 3: Cross multiply
    787,734.78x = 1,181,187.45 × 538,488.06
  4. Step 4: Simplify right side
    787,734.78x = 636,055,338,446.85
  5. Step 5: Solve for x
    x = 636,055,338,446.85/787,734.78
  6. Step 6: Final answer
    x = 807,448.59

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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.