Home / 502,628.60-693,789.12-321,827.48

Finding the Fourth Proportional to 502,628.60, 693,789.12 and 321,827.48

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Solution

The fourth proportional to 502,628.60, 693,789.12 and 321,827.48 is: 444,225.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,628.60 : 693,789.12 = 321,827.48 : x
  2. Step 2: Convert to fraction form
    502,628.60/693,789.12 = 321,827.48/x
  3. Step 3: Cross multiply
    502,628.60x = 693,789.12 × 321,827.48
  4. Step 4: Simplify right side
    502,628.60x = 223,280,404,141.02
  5. Step 5: Solve for x
    x = 223,280,404,141.02/502,628.60
  6. Step 6: Final answer
    x = 444,225.43

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1.5x scale

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.