Home / 498,981.28-688,594.47-269,538.60

Finding the Fourth Proportional to 498,981.28, 688,594.47 and 269,538.60

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Solution

The fourth proportional to 498,981.28, 688,594.47 and 269,538.60 is: 371,963.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,981.28 : 688,594.47 = 269,538.60 : x
  2. Step 2: Convert to fraction form
    498,981.28/688,594.47 = 269,538.60/x
  3. Step 3: Cross multiply
    498,981.28x = 688,594.47 × 269,538.60
  4. Step 4: Simplify right side
    498,981.28x = 185,602,789,411.54
  5. Step 5: Solve for x
    x = 185,602,789,411.54/498,981.28
  6. Step 6: Final answer
    x = 371,963.43

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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.