Home / 911,599.80-1,367,270.10-280,577.40

Finding the Fourth Proportional to 911,599.80, 1,367,270.10 and 280,577.40

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Solution

The fourth proportional to 911,599.80, 1,367,270.10 and 280,577.40 is: 420,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,599.80 : 1,367,270.10 = 280,577.40 : x
  2. Step 2: Convert to fraction form
    911,599.80/1,367,270.10 = 280,577.40/x
  3. Step 3: Cross multiply
    911,599.80x = 1,367,270.10 × 280,577.40
  4. Step 4: Simplify right side
    911,599.80x = 383,625,089,755.74
  5. Step 5: Solve for x
    x = 383,625,089,755.74/911,599.80
  6. Step 6: Final answer
    x = 420,826.21

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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.