Home / 678,637.80-1,017,924.30-229,314.60

Finding the Fourth Proportional to 678,637.80, 1,017,924.30 and 229,314.60

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Solution

The fourth proportional to 678,637.80, 1,017,924.30 and 229,314.60 is: 343,960.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,637.80 : 1,017,924.30 = 229,314.60 : x
  2. Step 2: Convert to fraction form
    678,637.80/1,017,924.30 = 229,314.60/x
  3. Step 3: Cross multiply
    678,637.80x = 1,017,924.30 × 229,314.60
  4. Step 4: Simplify right side
    678,637.80x = 233,424,903,684.78
  5. Step 5: Solve for x
    x = 233,424,903,684.78/678,637.80
  6. Step 6: Final answer
    x = 343,960.95

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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.