Home / 906,685.22-1,251,186.16-498,761.20

Finding the Fourth Proportional to 906,685.22, 1,251,186.16 and 498,761.20

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Solution

The fourth proportional to 906,685.22, 1,251,186.16 and 498,761.20 is: 688,268.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,685.22 : 1,251,186.16 = 498,761.20 : x
  2. Step 2: Convert to fraction form
    906,685.22/1,251,186.16 = 498,761.20/x
  3. Step 3: Cross multiply
    906,685.22x = 1,251,186.16 × 498,761.20
  4. Step 4: Simplify right side
    906,685.22x = 624,043,110,584.99
  5. Step 5: Solve for x
    x = 624,043,110,584.99/906,685.22
  6. Step 6: Final answer
    x = 688,268.76

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Double scale
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Similar ratio
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1.5x scale

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.