Home / 852,251.20-1,276,821.60-519,438.40

Finding the Fourth Proportional to 852,251.20, 1,276,821.60 and 519,438.40

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Solution

The fourth proportional to 852,251.20, 1,276,821.60 and 519,438.40 is: 778,209.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,251.20 : 1,276,821.60 = 519,438.40 : x
  2. Step 2: Convert to fraction form
    852,251.20/1,276,821.60 = 519,438.40/x
  3. Step 3: Cross multiply
    852,251.20x = 1,276,821.60 × 519,438.40
  4. Step 4: Simplify right side
    852,251.20x = 663,230,168,989.44
  5. Step 5: Solve for x
    x = 663,230,168,989.44/852,251.20
  6. Step 6: Final answer
    x = 778,209.72

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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.