Home / 639,367.98-882,264.99-352,869.57

Finding the Fourth Proportional to 639,367.98, 882,264.99 and 352,869.57

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Solution

The fourth proportional to 639,367.98, 882,264.99 and 352,869.57 is: 486,925.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,367.98 : 882,264.99 = 352,869.57 : x
  2. Step 2: Convert to fraction form
    639,367.98/882,264.99 = 352,869.57/x
  3. Step 3: Cross multiply
    639,367.98x = 882,264.99 × 352,869.57
  4. Step 4: Simplify right side
    639,367.98x = 311,324,467,647.35
  5. Step 5: Solve for x
    x = 311,324,467,647.35/639,367.98
  6. Step 6: Final answer
    x = 486,925.33

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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.