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Finding the Fourth Proportional to 873,998.40, 1,311,040.80 and 454,094.40

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Solution

The fourth proportional to 873,998.40, 1,311,040.80 and 454,094.40 is: 681,164.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,998.40 : 1,311,040.80 = 454,094.40 : x
  2. Step 2: Convert to fraction form
    873,998.40/1,311,040.80 = 454,094.40/x
  3. Step 3: Cross multiply
    873,998.40x = 1,311,040.80 × 454,094.40
  4. Step 4: Simplify right side
    873,998.40x = 595,336,285,451.52
  5. Step 5: Solve for x
    x = 595,336,285,451.52/873,998.40
  6. Step 6: Final answer
    x = 681,164.04

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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.