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Finding the Fourth Proportional to 534,717.80, 802,076.70 and 499,288.40

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Solution

The fourth proportional to 534,717.80, 802,076.70 and 499,288.40 is: 748,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,717.80 : 802,076.70 = 499,288.40 : x
  2. Step 2: Convert to fraction form
    534,717.80/802,076.70 = 499,288.40/x
  3. Step 3: Cross multiply
    534,717.80x = 802,076.70 × 499,288.40
  4. Step 4: Simplify right side
    534,717.80x = 400,467,592,220.28
  5. Step 5: Solve for x
    x = 400,467,592,220.28/534,717.80
  6. Step 6: Final answer
    x = 748,932.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.