Home / 502,078.86-692,868.78-272,635.02

Finding the Fourth Proportional to 502,078.86, 692,868.78 and 272,635.02

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Solution

The fourth proportional to 502,078.86, 692,868.78 and 272,635.02 is: 376,236.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,078.86 : 692,868.78 = 272,635.02 : x
  2. Step 2: Convert to fraction form
    502,078.86/692,868.78 = 272,635.02/x
  3. Step 3: Cross multiply
    502,078.86x = 692,868.78 × 272,635.02
  4. Step 4: Simplify right side
    502,078.86x = 188,900,293,692.68
  5. Step 5: Solve for x
    x = 188,900,293,692.68/502,078.86
  6. Step 6: Final answer
    x = 376,236.30

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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.