Home / 423,263.21-634,954.38-123,766.31

Finding the Fourth Proportional to 423,263.21, 634,954.38 and 123,766.31

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Solution

The fourth proportional to 423,263.21, 634,954.38 and 123,766.31 is: 185,666.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,263.21 : 634,954.38 = 123,766.31 : x
  2. Step 2: Convert to fraction form
    423,263.21/634,954.38 = 123,766.31/x
  3. Step 3: Cross multiply
    423,263.21x = 634,954.38 × 123,766.31
  4. Step 4: Simplify right side
    423,263.21x = 78,585,961,754.20
  5. Step 5: Solve for x
    x = 78,585,961,754.20/423,263.21
  6. Step 6: Final answer
    x = 185,666.89

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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.