Home / 502,322.41-693,030.62-321,140.39

Finding the Fourth Proportional to 502,322.41, 693,030.62 and 321,140.39

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Solution

The fourth proportional to 502,322.41, 693,030.62 and 321,140.39 is: 443,062.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,322.41 : 693,030.62 = 321,140.39 : x
  2. Step 2: Convert to fraction form
    502,322.41/693,030.62 = 321,140.39/x
  3. Step 3: Cross multiply
    502,322.41x = 693,030.62 × 321,140.39
  4. Step 4: Simplify right side
    502,322.41x = 222,560,121,983.04
  5. Step 5: Solve for x
    x = 222,560,121,983.04/502,322.41
  6. Step 6: Final answer
    x = 443,062.30

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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.