Home / 756,972.40-1,135,434-307,560.40

Finding the Fourth Proportional to 756,972.40, 1,135,434 and 307,560.40

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Solution

The fourth proportional to 756,972.40, 1,135,434 and 307,560.40 is: 461,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,972.40 : 1,135,434 = 307,560.40 : x
  2. Step 2: Convert to fraction form
    756,972.40/1,135,434 = 307,560.40/x
  3. Step 3: Cross multiply
    756,972.40x = 1,135,434 × 307,560.40
  4. Step 4: Simplify right side
    756,972.40x = 349,214,535,213.60
  5. Step 5: Solve for x
    x = 349,214,535,213.60/756,972.40
  6. Step 6: Final answer
    x = 461,330.60

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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.