Home / 1,245,333.40-1,868,000.10-1,123,298.80

Finding the Fourth Proportional to 1,245,333.40, 1,868,000.10 and 1,123,298.80

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Solution

The fourth proportional to 1,245,333.40, 1,868,000.10 and 1,123,298.80 is: 1,684,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,333.40 : 1,868,000.10 = 1,123,298.80 : x
  2. Step 2: Convert to fraction form
    1,245,333.40/1,868,000.10 = 1,123,298.80/x
  3. Step 3: Cross multiply
    1,245,333.40x = 1,868,000.10 × 1,123,298.80
  4. Step 4: Simplify right side
    1,245,333.40x = 2,098,322,270,729.88
  5. Step 5: Solve for x
    x = 2,098,322,270,729.88/1,245,333.40
  6. Step 6: Final answer
    x = 1,684,948.20

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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.