Home / 423,236.45-634,842.37-123,724.07

Finding the Fourth Proportional to 423,236.45, 634,842.37 and 123,724.07

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Solution

The fourth proportional to 423,236.45, 634,842.37 and 123,724.07 is: 185,582.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,236.45 : 634,842.37 = 123,724.07 : x
  2. Step 2: Convert to fraction form
    423,236.45/634,842.37 = 123,724.07/x
  3. Step 3: Cross multiply
    423,236.45x = 634,842.37 × 123,724.07
  4. Step 4: Simplify right side
    423,236.45x = 78,545,281,185.95
  5. Step 5: Solve for x
    x = 78,545,281,185.95/423,236.45
  6. Step 6: Final answer
    x = 185,582.51

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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.