Home / 1,225,815.12-1,834,921.08-663,454.80

Finding the Fourth Proportional to 1,225,815.12, 1,834,921.08 and 663,454.80

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Solution

The fourth proportional to 1,225,815.12, 1,834,921.08 and 663,454.80 is: 993,124.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,815.12 : 1,834,921.08 = 663,454.80 : x
  2. Step 2: Convert to fraction form
    1,225,815.12/1,834,921.08 = 663,454.80/x
  3. Step 3: Cross multiply
    1,225,815.12x = 1,834,921.08 × 663,454.80
  4. Step 4: Simplify right side
    1,225,815.12x = 1,217,387,198,147.18
  5. Step 5: Solve for x
    x = 1,217,387,198,147.18/1,225,815.12
  6. Step 6: Final answer
    x = 993,124.64

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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.