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Finding the Fourth Proportional to 534,859.20, 802,288.80 and 499,867.20

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Solution

The fourth proportional to 534,859.20, 802,288.80 and 499,867.20 is: 749,800.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,859.20 : 802,288.80 = 499,867.20 : x
  2. Step 2: Convert to fraction form
    534,859.20/802,288.80 = 499,867.20/x
  3. Step 3: Cross multiply
    534,859.20x = 802,288.80 × 499,867.20
  4. Step 4: Simplify right side
    534,859.20x = 401,037,856,047.36
  5. Step 5: Solve for x
    x = 401,037,856,047.36/534,859.20
  6. Step 6: Final answer
    x = 749,800.80

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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.