Home / 851,279.80-1,276,919.70-496,694.20

Finding the Fourth Proportional to 851,279.80, 1,276,919.70 and 496,694.20

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Solution

The fourth proportional to 851,279.80, 1,276,919.70 and 496,694.20 is: 745,041.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,279.80 : 1,276,919.70 = 496,694.20 : x
  2. Step 2: Convert to fraction form
    851,279.80/1,276,919.70 = 496,694.20/x
  3. Step 3: Cross multiply
    851,279.80x = 1,276,919.70 × 496,694.20
  4. Step 4: Simplify right side
    851,279.80x = 634,238,608,855.74
  5. Step 5: Solve for x
    x = 634,238,608,855.74/851,279.80
  6. Step 6: Final answer
    x = 745,041.30

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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.