Home / 498,486.34-687,907.65-272,131.84

Finding the Fourth Proportional to 498,486.34, 687,907.65 and 272,131.84

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Solution

The fourth proportional to 498,486.34, 687,907.65 and 272,131.84 is: 375,540.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,486.34 : 687,907.65 = 272,131.84 : x
  2. Step 2: Convert to fraction form
    498,486.34/687,907.65 = 272,131.84/x
  3. Step 3: Cross multiply
    498,486.34x = 687,907.65 × 272,131.84
  4. Step 4: Simplify right side
    498,486.34x = 187,201,574,544.58
  5. Step 5: Solve for x
    x = 187,201,574,544.58/498,486.34
  6. Step 6: Final answer
    x = 375,540.03

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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.