Home / 498,918.40-688,507.11-269,475.56

Finding the Fourth Proportional to 498,918.40, 688,507.11 and 269,475.56

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Solution

The fourth proportional to 498,918.40, 688,507.11 and 269,475.56 is: 371,876.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,918.40 : 688,507.11 = 269,475.56 : x
  2. Step 2: Convert to fraction form
    498,918.40/688,507.11 = 269,475.56/x
  3. Step 3: Cross multiply
    498,918.40x = 688,507.11 × 269,475.56
  4. Step 4: Simplify right side
    498,918.40x = 185,535,839,031.23
  5. Step 5: Solve for x
    x = 185,535,839,031.23/498,918.40
  6. Step 6: Final answer
    x = 371,876.12

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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.