Home / 686,027.82-1,027,279.17-448,678.38

Finding the Fourth Proportional to 686,027.82, 1,027,279.17 and 448,678.38

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Solution

The fourth proportional to 686,027.82, 1,027,279.17 and 448,678.38 is: 671,864.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,027.82 : 1,027,279.17 = 448,678.38 : x
  2. Step 2: Convert to fraction form
    686,027.82/1,027,279.17 = 448,678.38/x
  3. Step 3: Cross multiply
    686,027.82x = 1,027,279.17 × 448,678.38
  4. Step 4: Simplify right side
    686,027.82x = 460,917,953,803.35
  5. Step 5: Solve for x
    x = 460,917,953,803.35/686,027.82
  6. Step 6: Final answer
    x = 671,864.81

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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.