Home / 852,921.60-1,278,563.20-663,276.80

Finding the Fourth Proportional to 852,921.60, 1,278,563.20 and 663,276.80

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Solution

The fourth proportional to 852,921.60, 1,278,563.20 and 663,276.80 is: 994,278.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,921.60 : 1,278,563.20 = 663,276.80 : x
  2. Step 2: Convert to fraction form
    852,921.60/1,278,563.20 = 663,276.80/x
  3. Step 3: Cross multiply
    852,921.60x = 1,278,563.20 × 663,276.80
  4. Step 4: Simplify right side
    852,921.60x = 848,041,307,893.76
  5. Step 5: Solve for x
    x = 848,041,307,893.76/852,921.60
  6. Step 6: Final answer
    x = 994,278.15

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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.