Home / 929,989.52-1,395,104.56-641,264.51

Finding the Fourth Proportional to 929,989.52, 1,395,104.56 and 641,264.51

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Solution

The fourth proportional to 929,989.52, 1,395,104.56 and 641,264.51 is: 961,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,989.52 : 1,395,104.56 = 641,264.51 : x
  2. Step 2: Convert to fraction form
    929,989.52/1,395,104.56 = 641,264.51/x
  3. Step 3: Cross multiply
    929,989.52x = 1,395,104.56 × 641,264.51
  4. Step 4: Simplify right side
    929,989.52x = 894,631,043,951.77
  5. Step 5: Solve for x
    x = 894,631,043,951.77/929,989.52
  6. Step 6: Final answer
    x = 961,979.71

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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.