Home / 816,959.28-1,223,339.39-500,456.64

Finding the Fourth Proportional to 816,959.28, 1,223,339.39 and 500,456.64

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Solution

The fourth proportional to 816,959.28, 1,223,339.39 and 500,456.64 is: 749,398.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,959.28 : 1,223,339.39 = 500,456.64 : x
  2. Step 2: Convert to fraction form
    816,959.28/1,223,339.39 = 500,456.64/x
  3. Step 3: Cross multiply
    816,959.28x = 1,223,339.39 × 500,456.64
  4. Step 4: Simplify right side
    816,959.28x = 612,228,320,699.05
  5. Step 5: Solve for x
    x = 612,228,320,699.05/816,959.28
  6. Step 6: Final answer
    x = 749,398.82

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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.