Home / 765,018.06-1,055,691.64-420,832.17

Finding the Fourth Proportional to 765,018.06, 1,055,691.64 and 420,832.17

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Solution

The fourth proportional to 765,018.06, 1,055,691.64 and 420,832.17 is: 580,730.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,018.06 : 1,055,691.64 = 420,832.17 : x
  2. Step 2: Convert to fraction form
    765,018.06/1,055,691.64 = 420,832.17/x
  3. Step 3: Cross multiply
    765,018.06x = 1,055,691.64 × 420,832.17
  4. Step 4: Simplify right side
    765,018.06x = 444,269,003,712.06
  5. Step 5: Solve for x
    x = 444,269,003,712.06/765,018.06
  6. Step 6: Final answer
    x = 580,730.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.