Home / 498,981.82-688,601.55-284,122.74

Finding the Fourth Proportional to 498,981.82, 688,601.55 and 284,122.74

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Solution

The fourth proportional to 498,981.82, 688,601.55 and 284,122.74 is: 392,093.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,981.82 : 688,601.55 = 284,122.74 : x
  2. Step 2: Convert to fraction form
    498,981.82/688,601.55 = 284,122.74/x
  3. Step 3: Cross multiply
    498,981.82x = 688,601.55 × 284,122.74
  4. Step 4: Simplify right side
    498,981.82x = 195,647,358,928.58
  5. Step 5: Solve for x
    x = 195,647,358,928.58/498,981.82
  6. Step 6: Final answer
    x = 392,093.16

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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.