Home / 678,577.48-1,016,315.48-323,840.61

Finding the Fourth Proportional to 678,577.48, 1,016,315.48 and 323,840.61

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Solution

The fourth proportional to 678,577.48, 1,016,315.48 and 323,840.61 is: 485,020.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,577.48 : 1,016,315.48 = 323,840.61 : x
  2. Step 2: Convert to fraction form
    678,577.48/1,016,315.48 = 323,840.61/x
  3. Step 3: Cross multiply
    678,577.48x = 1,016,315.48 × 323,840.61
  4. Step 4: Simplify right side
    678,577.48x = 329,124,225,805.24
  5. Step 5: Solve for x
    x = 329,124,225,805.24/678,577.48
  6. Step 6: Final answer
    x = 485,020.85

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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.