Home / 787,153.89-1,179,982.73-307,689.08

Finding the Fourth Proportional to 787,153.89, 1,179,982.73 and 307,689.08

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Solution

The fourth proportional to 787,153.89, 1,179,982.73 and 307,689.08 is: 461,241.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,153.89 : 1,179,982.73 = 307,689.08 : x
  2. Step 2: Convert to fraction form
    787,153.89/1,179,982.73 = 307,689.08/x
  3. Step 3: Cross multiply
    787,153.89x = 1,179,982.73 × 307,689.08
  4. Step 4: Simplify right side
    787,153.89x = 363,067,793,171.23
  5. Step 5: Solve for x
    x = 363,067,793,171.23/787,153.89
  6. Step 6: Final answer
    x = 461,241.19

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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.