Home / 911,849.20-1,367,773.80-280,956.40

Finding the Fourth Proportional to 911,849.20, 1,367,773.80 and 280,956.40

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Solution

The fourth proportional to 911,849.20, 1,367,773.80 and 280,956.40 is: 421,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,849.20 : 1,367,773.80 = 280,956.40 : x
  2. Step 2: Convert to fraction form
    911,849.20/1,367,773.80 = 280,956.40/x
  3. Step 3: Cross multiply
    911,849.20x = 1,367,773.80 × 280,956.40
  4. Step 4: Simplify right side
    911,849.20x = 384,284,802,862.32
  5. Step 5: Solve for x
    x = 384,284,802,862.32/911,849.20
  6. Step 6: Final answer
    x = 421,434.60

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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.