Home / 906,770.47-1,251,343.32-498,863.59

Finding the Fourth Proportional to 906,770.47, 1,251,343.32 and 498,863.59

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Solution

The fourth proportional to 906,770.47, 1,251,343.32 and 498,863.59 is: 688,431.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,770.47 : 1,251,343.32 = 498,863.59 : x
  2. Step 2: Convert to fraction form
    906,770.47/1,251,343.32 = 498,863.59/x
  3. Step 3: Cross multiply
    906,770.47x = 1,251,343.32 × 498,863.59
  4. Step 4: Simplify right side
    906,770.47x = 624,249,620,937.72
  5. Step 5: Solve for x
    x = 624,249,620,937.72/906,770.47
  6. Step 6: Final answer
    x = 688,431.79

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Half scale
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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.