Home / 678,320-1,017,499.44-179,684

Finding the Fourth Proportional to 678,320, 1,017,499.44 and 179,684

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Solution

The fourth proportional to 678,320, 1,017,499.44 and 179,684 is: 269,531.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,320 : 1,017,499.44 = 179,684 : x
  2. Step 2: Convert to fraction form
    678,320/1,017,499.44 = 179,684/x
  3. Step 3: Cross multiply
    678,320x = 1,017,499.44 × 179,684
  4. Step 4: Simplify right side
    678,320x = 182,828,369,376.96
  5. Step 5: Solve for x
    x = 182,828,369,376.96/678,320
  6. Step 6: Final answer
    x = 269,531.15

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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.