Home / 965,138.39-1,331,892.54-535,418.53

Finding the Fourth Proportional to 965,138.39, 1,331,892.54 and 535,418.53

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Solution

The fourth proportional to 965,138.39, 1,331,892.54 and 535,418.53 is: 738,878.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,138.39 : 1,331,892.54 = 535,418.53 : x
  2. Step 2: Convert to fraction form
    965,138.39/1,331,892.54 = 535,418.53/x
  3. Step 3: Cross multiply
    965,138.39x = 1,331,892.54 × 535,418.53
  4. Step 4: Simplify right side
    965,138.39x = 713,119,942,555.04
  5. Step 5: Solve for x
    x = 713,119,942,555.04/965,138.39
  6. Step 6: Final answer
    x = 738,878.44

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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.