Home / 502,543.19-693,671.22-321,742.07

Finding the Fourth Proportional to 502,543.19, 693,671.22 and 321,742.07

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Solution

The fourth proportional to 502,543.19, 693,671.22 and 321,742.07 is: 444,107.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,543.19 : 693,671.22 = 321,742.07 : x
  2. Step 2: Convert to fraction form
    502,543.19/693,671.22 = 321,742.07/x
  3. Step 3: Cross multiply
    502,543.19x = 693,671.22 × 321,742.07
  4. Step 4: Simplify right side
    502,543.19x = 223,183,216,352.14
  5. Step 5: Solve for x
    x = 223,183,216,352.14/502,543.19
  6. Step 6: Final answer
    x = 444,107.54

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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.