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Finding the Fourth Proportional to 1,245,656.20, 1,868,484.30 and 996,824.20

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Solution

The fourth proportional to 1,245,656.20, 1,868,484.30 and 996,824.20 is: 1,495,236.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,656.20 : 1,868,484.30 = 996,824.20 : x
  2. Step 2: Convert to fraction form
    1,245,656.20/1,868,484.30 = 996,824.20/x
  3. Step 3: Cross multiply
    1,245,656.20x = 1,868,484.30 × 996,824.20
  4. Step 4: Simplify right side
    1,245,656.20x = 1,862,550,367,560.06
  5. Step 5: Solve for x
    x = 1,862,550,367,560.06/1,245,656.20
  6. Step 6: Final answer
    x = 1,495,236.30

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Similar ratio
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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.