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Finding the Fourth Proportional to 498,989.04, 688,604.76 and 269,546.28

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Solution

The fourth proportional to 498,989.04, 688,604.76 and 269,546.28 is: 371,973.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,989.04 : 688,604.76 = 269,546.28 : x
  2. Step 2: Convert to fraction form
    498,989.04/688,604.76 = 269,546.28/x
  3. Step 3: Cross multiply
    498,989.04x = 688,604.76 × 269,546.28
  4. Step 4: Simplify right side
    498,989.04x = 185,610,851,448.29
  5. Step 5: Solve for x
    x = 185,610,851,448.29/498,989.04
  6. Step 6: Final answer
    x = 371,973.80

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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.