Home / 678,689.46-1,017,865.98-229,400.37

Finding the Fourth Proportional to 678,689.46, 1,017,865.98 and 229,400.37

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Solution

The fourth proportional to 678,689.46, 1,017,865.98 and 229,400.37 is: 344,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,689.46 : 1,017,865.98 = 229,400.37 : x
  2. Step 2: Convert to fraction form
    678,689.46/1,017,865.98 = 229,400.37/x
  3. Step 3: Cross multiply
    678,689.46x = 1,017,865.98 × 229,400.37
  4. Step 4: Simplify right side
    678,689.46x = 233,498,832,422.41
  5. Step 5: Solve for x
    x = 233,498,832,422.41/678,689.46
  6. Step 6: Final answer
    x = 344,043.70

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1.5x scale

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.