Home / 482,619.24-665,947.64-321,578.28

Finding the Fourth Proportional to 482,619.24, 665,947.64 and 321,578.28

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Solution

The fourth proportional to 482,619.24, 665,947.64 and 321,578.28 is: 443,733.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,619.24 : 665,947.64 = 321,578.28 : x
  2. Step 2: Convert to fraction form
    482,619.24/665,947.64 = 321,578.28/x
  3. Step 3: Cross multiply
    482,619.24x = 665,947.64 × 321,578.28
  4. Step 4: Simplify right side
    482,619.24x = 214,154,296,641.26
  5. Step 5: Solve for x
    x = 214,154,296,641.26/482,619.24
  6. Step 6: Final answer
    x = 443,733.44

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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.