Home / 878,542.20-1,212,375.60-496,555.92

Finding the Fourth Proportional to 878,542.20, 1,212,375.60 and 496,555.92

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Solution

The fourth proportional to 878,542.20, 1,212,375.60 and 496,555.92 is: 685,240.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,542.20 : 1,212,375.60 = 496,555.92 : x
  2. Step 2: Convert to fraction form
    878,542.20/1,212,375.60 = 496,555.92/x
  3. Step 3: Cross multiply
    878,542.20x = 1,212,375.60 × 496,555.92
  4. Step 4: Simplify right side
    878,542.20x = 602,012,281,443.55
  5. Step 5: Solve for x
    x = 602,012,281,443.55/878,542.20
  6. Step 6: Final answer
    x = 685,240.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.