Home / 423,263.78-634,955.22-123,766.88

Finding the Fourth Proportional to 423,263.78, 634,955.22 and 123,766.88

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Solution

The fourth proportional to 423,263.78, 634,955.22 and 123,766.88 is: 185,667.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,263.78 : 634,955.22 = 123,766.88 : x
  2. Step 2: Convert to fraction form
    423,263.78/634,955.22 = 123,766.88/x
  3. Step 3: Cross multiply
    423,263.78x = 634,955.22 × 123,766.88
  4. Step 4: Simplify right side
    423,263.78x = 78,586,423,344.34
  5. Step 5: Solve for x
    x = 78,586,423,344.34/423,263.78
  6. Step 6: Final answer
    x = 185,667.73

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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.