Home / 462,845.98-638,514.39-319,806.46

Finding the Fourth Proportional to 462,845.98, 638,514.39 and 319,806.46

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Solution

The fourth proportional to 462,845.98, 638,514.39 and 319,806.46 is: 441,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,845.98 : 638,514.39 = 319,806.46 : x
  2. Step 2: Convert to fraction form
    462,845.98/638,514.39 = 319,806.46/x
  3. Step 3: Cross multiply
    462,845.98x = 638,514.39 × 319,806.46
  4. Step 4: Simplify right side
    462,845.98x = 204,201,026,724.96
  5. Step 5: Solve for x
    x = 204,201,026,724.96/462,845.98
  6. Step 6: Final answer
    x = 441,185.70

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1.5x scale

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.