Home / 772,615.38-1,159,256.06-417,879.12

Finding the Fourth Proportional to 772,615.38, 1,159,256.06 and 417,879.12

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Solution

The fourth proportional to 772,615.38, 1,159,256.06 and 417,879.12 is: 626,998.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,615.38 : 1,159,256.06 = 417,879.12 : x
  2. Step 2: Convert to fraction form
    772,615.38/1,159,256.06 = 417,879.12/x
  3. Step 3: Cross multiply
    772,615.38x = 1,159,256.06 × 417,879.12
  4. Step 4: Simplify right side
    772,615.38x = 484,428,900,118.07
  5. Step 5: Solve for x
    x = 484,428,900,118.07/772,615.38
  6. Step 6: Final answer
    x = 626,998.78

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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.