Home / 678,326.60-1,017,633.82-257,593.16

Finding the Fourth Proportional to 678,326.60, 1,017,633.82 and 257,593.16

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Solution

The fourth proportional to 678,326.60, 1,017,633.82 and 257,593.16 is: 386,444.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,326.60 : 1,017,633.82 = 257,593.16 : x
  2. Step 2: Convert to fraction form
    678,326.60/1,017,633.82 = 257,593.16/x
  3. Step 3: Cross multiply
    678,326.60x = 1,017,633.82 × 257,593.16
  4. Step 4: Simplify right side
    678,326.60x = 262,135,511,416.67
  5. Step 5: Solve for x
    x = 262,135,511,416.67/678,326.60
  6. Step 6: Final answer
    x = 386,444.39

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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.