Home / 782,656.40-1,173,504.83-333,121.28

Finding the Fourth Proportional to 782,656.40, 1,173,504.83 and 333,121.28

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Solution

The fourth proportional to 782,656.40, 1,173,504.83 and 333,121.28 is: 499,477.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,656.40 : 1,173,504.83 = 333,121.28 : x
  2. Step 2: Convert to fraction form
    782,656.40/1,173,504.83 = 333,121.28/x
  3. Step 3: Cross multiply
    782,656.40x = 1,173,504.83 × 333,121.28
  4. Step 4: Simplify right side
    782,656.40x = 390,919,431,055.78
  5. Step 5: Solve for x
    x = 390,919,431,055.78/782,656.40
  6. Step 6: Final answer
    x = 499,477.72

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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.