Home / 965,138.70-1,331,892.97-535,418.84

Finding the Fourth Proportional to 965,138.70, 1,331,892.97 and 535,418.84

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Solution

The fourth proportional to 965,138.70, 1,331,892.97 and 535,418.84 is: 738,878.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,138.70 : 1,331,892.97 = 535,418.84 : x
  2. Step 2: Convert to fraction form
    965,138.70/1,331,892.97 = 535,418.84/x
  3. Step 3: Cross multiply
    965,138.70x = 1,331,892.97 × 535,418.84
  4. Step 4: Simplify right side
    965,138.70x = 713,120,589,670.83
  5. Step 5: Solve for x
    x = 713,120,589,670.83/965,138.70
  6. Step 6: Final answer
    x = 738,878.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.