Home / 781,151.40-1,171,714.68-248,664.69

Finding the Fourth Proportional to 781,151.40, 1,171,714.68 and 248,664.69

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Solution

The fourth proportional to 781,151.40, 1,171,714.68 and 248,664.69 is: 372,993.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,151.40 : 1,171,714.68 = 248,664.69 : x
  2. Step 2: Convert to fraction form
    781,151.40/1,171,714.68 = 248,664.69/x
  3. Step 3: Cross multiply
    781,151.40x = 1,171,714.68 × 248,664.69
  4. Step 4: Simplify right side
    781,151.40x = 291,364,067,670.65
  5. Step 5: Solve for x
    x = 291,364,067,670.65/781,151.40
  6. Step 6: Final answer
    x = 372,993.08

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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.