Home / 2,746,978.80-4,120,468.20-853,705.20

Finding the Fourth Proportional to 2,746,978.80, 4,120,468.20 and 853,705.20

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Solution

The fourth proportional to 2,746,978.80, 4,120,468.20 and 853,705.20 is: 1,280,557.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,746,978.80 : 4,120,468.20 = 853,705.20 : x
  2. Step 2: Convert to fraction form
    2,746,978.80/4,120,468.20 = 853,705.20/x
  3. Step 3: Cross multiply
    2,746,978.80x = 4,120,468.20 × 853,705.20
  4. Step 4: Simplify right side
    2,746,978.80x = 3,517,665,128,774.64
  5. Step 5: Solve for x
    x = 3,517,665,128,774.64/2,746,978.80
  6. Step 6: Final answer
    x = 1,280,557.80

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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.