Home / 852,214.40-1,278,019.20-378,051.20

Finding the Fourth Proportional to 852,214.40, 1,278,019.20 and 378,051.20

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Solution

The fourth proportional to 852,214.40, 1,278,019.20 and 378,051.20 is: 566,942.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,214.40 : 1,278,019.20 = 378,051.20 : x
  2. Step 2: Convert to fraction form
    852,214.40/1,278,019.20 = 378,051.20/x
  3. Step 3: Cross multiply
    852,214.40x = 1,278,019.20 × 378,051.20
  4. Step 4: Simplify right side
    852,214.40x = 483,156,692,183.04
  5. Step 5: Solve for x
    x = 483,156,692,183.04/852,214.40
  6. Step 6: Final answer
    x = 566,942.65

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Double scale
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1.5x scale

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.