Home / 639,514.83-959,047.06-212,934.81

Finding the Fourth Proportional to 639,514.83, 959,047.06 and 212,934.81

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Solution

The fourth proportional to 639,514.83, 959,047.06 and 212,934.81 is: 319,327.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,514.83 : 959,047.06 = 212,934.81 : x
  2. Step 2: Convert to fraction form
    639,514.83/959,047.06 = 212,934.81/x
  3. Step 3: Cross multiply
    639,514.83x = 959,047.06 × 212,934.81
  4. Step 4: Simplify right side
    639,514.83x = 204,214,503,502.16
  5. Step 5: Solve for x
    x = 204,214,503,502.16/639,514.83
  6. Step 6: Final answer
    x = 319,327.24

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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.