Home / 426,487.89-639,732.65-110,944.29

Finding the Fourth Proportional to 426,487.89, 639,732.65 and 110,944.29

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Solution

The fourth proportional to 426,487.89, 639,732.65 and 110,944.29 is: 166,416.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,487.89 : 639,732.65 = 110,944.29 : x
  2. Step 2: Convert to fraction form
    426,487.89/639,732.65 = 110,944.29/x
  3. Step 3: Cross multiply
    426,487.89x = 639,732.65 × 110,944.29
  4. Step 4: Simplify right side
    426,487.89x = 70,974,684,089.35
  5. Step 5: Solve for x
    x = 70,974,684,089.35/426,487.89
  6. Step 6: Final answer
    x = 166,416.65

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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.