Home / 906,776.28-1,251,351.32-498,869.39

Finding the Fourth Proportional to 906,776.28, 1,251,351.32 and 498,869.39

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Solution

The fourth proportional to 906,776.28, 1,251,351.32 and 498,869.39 is: 688,439.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,776.28 : 1,251,351.32 = 498,869.39 : x
  2. Step 2: Convert to fraction form
    906,776.28/1,251,351.32 = 498,869.39/x
  3. Step 3: Cross multiply
    906,776.28x = 1,251,351.32 × 498,869.39
  4. Step 4: Simplify right side
    906,776.28x = 624,260,870,318.13
  5. Step 5: Solve for x
    x = 624,260,870,318.13/906,776.28
  6. Step 6: Final answer
    x = 688,439.79

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Double scale
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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.