Home / 850,219.20-1,275,328.80-714,916.80

Finding the Fourth Proportional to 850,219.20, 1,275,328.80 and 714,916.80

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Solution

The fourth proportional to 850,219.20, 1,275,328.80 and 714,916.80 is: 1,072,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,219.20 : 1,275,328.80 = 714,916.80 : x
  2. Step 2: Convert to fraction form
    850,219.20/1,275,328.80 = 714,916.80/x
  3. Step 3: Cross multiply
    850,219.20x = 1,275,328.80 × 714,916.80
  4. Step 4: Simplify right side
    850,219.20x = 911,753,984,643.84
  5. Step 5: Solve for x
    x = 911,753,984,643.84/850,219.20
  6. Step 6: Final answer
    x = 1,072,375.20

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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.