Home / 499,304.16-689,043.92-284,440.88

Finding the Fourth Proportional to 499,304.16, 689,043.92 and 284,440.88

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Solution

The fourth proportional to 499,304.16, 689,043.92 and 284,440.88 is: 392,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,304.16 : 689,043.92 = 284,440.88 : x
  2. Step 2: Convert to fraction form
    499,304.16/689,043.92 = 284,440.88/x
  3. Step 3: Cross multiply
    499,304.16x = 689,043.92 × 284,440.88
  4. Step 4: Simplify right side
    499,304.16x = 195,992,258,963.45
  5. Step 5: Solve for x
    x = 195,992,258,963.45/499,304.16
  6. Step 6: Final answer
    x = 392,530.80

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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.