Home / 851,159.20-1,276,738.80-641,207.20

Finding the Fourth Proportional to 851,159.20, 1,276,738.80 and 641,207.20

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Solution

The fourth proportional to 851,159.20, 1,276,738.80 and 641,207.20 is: 961,810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,159.20 : 1,276,738.80 = 641,207.20 : x
  2. Step 2: Convert to fraction form
    851,159.20/1,276,738.80 = 641,207.20/x
  3. Step 3: Cross multiply
    851,159.20x = 1,276,738.80 × 641,207.20
  4. Step 4: Simplify right side
    851,159.20x = 818,654,111,079.36
  5. Step 5: Solve for x
    x = 818,654,111,079.36/851,159.20
  6. Step 6: Final answer
    x = 961,810.80

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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.