Home / 911,705.59-1,367,575.98-280,618.75

Finding the Fourth Proportional to 911,705.59, 1,367,575.98 and 280,618.75

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Solution

The fourth proportional to 911,705.59, 1,367,575.98 and 280,618.75 is: 420,933.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,705.59 : 1,367,575.98 = 280,618.75 : x
  2. Step 2: Convert to fraction form
    911,705.59/1,367,575.98 = 280,618.75/x
  3. Step 3: Cross multiply
    911,705.59x = 1,367,575.98 × 280,618.75
  4. Step 4: Simplify right side
    911,705.59x = 383,767,462,037.63
  5. Step 5: Solve for x
    x = 383,767,462,037.63/911,705.59
  6. Step 6: Final answer
    x = 420,933.54

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1.5x scale

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.