Home / 1,815,427.40-2,723,141.10-485,731.40

Finding the Fourth Proportional to 1,815,427.40, 2,723,141.10 and 485,731.40

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Solution

The fourth proportional to 1,815,427.40, 2,723,141.10 and 485,731.40 is: 728,597.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,427.40 : 2,723,141.10 = 485,731.40 : x
  2. Step 2: Convert to fraction form
    1,815,427.40/2,723,141.10 = 485,731.40/x
  3. Step 3: Cross multiply
    1,815,427.40x = 2,723,141.10 × 485,731.40
  4. Step 4: Simplify right side
    1,815,427.40x = 1,322,715,138,900.54
  5. Step 5: Solve for x
    x = 1,322,715,138,900.54/1,815,427.40
  6. Step 6: Final answer
    x = 728,597.10

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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.