Home / 509,164.20-763,453.60-209,851.38

Finding the Fourth Proportional to 509,164.20, 763,453.60 and 209,851.38

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Solution

The fourth proportional to 509,164.20, 763,453.60 and 209,851.38 is: 314,656.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,164.20 : 763,453.60 = 209,851.38 : x
  2. Step 2: Convert to fraction form
    509,164.20/763,453.60 = 209,851.38/x
  3. Step 3: Cross multiply
    509,164.20x = 763,453.60 × 209,851.38
  4. Step 4: Simplify right side
    509,164.20x = 160,211,791,525.97
  5. Step 5: Solve for x
    x = 160,211,791,525.97/509,164.20
  6. Step 6: Final answer
    x = 314,656.43

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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.