Home / 768,876.19-1,153,314.29-207,910.69

Finding the Fourth Proportional to 768,876.19, 1,153,314.29 and 207,910.69

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Solution

The fourth proportional to 768,876.19, 1,153,314.29 and 207,910.69 is: 311,866.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,876.19 : 1,153,314.29 = 207,910.69 : x
  2. Step 2: Convert to fraction form
    768,876.19/1,153,314.29 = 207,910.69/x
  3. Step 3: Cross multiply
    768,876.19x = 1,153,314.29 × 207,910.69
  4. Step 4: Simplify right side
    768,876.19x = 239,786,367,457.25
  5. Step 5: Solve for x
    x = 239,786,367,457.25/768,876.19
  6. Step 6: Final answer
    x = 311,866.03

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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.