Home / 423,116.46-634,574.79-198,631.98

Finding the Fourth Proportional to 423,116.46, 634,574.79 and 198,631.98

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Solution

The fourth proportional to 423,116.46, 634,574.79 and 198,631.98 is: 297,901.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,116.46 : 634,574.79 = 198,631.98 : x
  2. Step 2: Convert to fraction form
    423,116.46/634,574.79 = 198,631.98/x
  3. Step 3: Cross multiply
    423,116.46x = 634,574.79 × 198,631.98
  4. Step 4: Simplify right side
    423,116.46x = 126,046,846,995.78
  5. Step 5: Solve for x
    x = 126,046,846,995.78/423,116.46
  6. Step 6: Final answer
    x = 297,901.07

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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.