Home / 851,036.40-1,276,846.20-378,061.20

Finding the Fourth Proportional to 851,036.40, 1,276,846.20 and 378,061.20

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Solution

The fourth proportional to 851,036.40, 1,276,846.20 and 378,061.20 is: 567,221.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,036.40 : 1,276,846.20 = 378,061.20 : x
  2. Step 2: Convert to fraction form
    851,036.40/1,276,846.20 = 378,061.20/x
  3. Step 3: Cross multiply
    851,036.40x = 1,276,846.20 × 378,061.20
  4. Step 4: Simplify right side
    851,036.40x = 482,726,006,587.44
  5. Step 5: Solve for x
    x = 482,726,006,587.44/851,036.40
  6. Step 6: Final answer
    x = 567,221.34

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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.