Home / 851,029.20-1,276,543.80-762,382.80

Finding the Fourth Proportional to 851,029.20, 1,276,543.80 and 762,382.80

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Solution

The fourth proportional to 851,029.20, 1,276,543.80 and 762,382.80 is: 1,143,574.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,029.20 : 1,276,543.80 = 762,382.80 : x
  2. Step 2: Convert to fraction form
    851,029.20/1,276,543.80 = 762,382.80/x
  3. Step 3: Cross multiply
    851,029.20x = 1,276,543.80 × 762,382.80
  4. Step 4: Simplify right side
    851,029.20x = 973,215,036,566.64
  5. Step 5: Solve for x
    x = 973,215,036,566.64/851,029.20
  6. Step 6: Final answer
    x = 1,143,574.20

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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.