Home / 639,367.10-882,263.78-352,868.69

Finding the Fourth Proportional to 639,367.10, 882,263.78 and 352,868.69

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Solution

The fourth proportional to 639,367.10, 882,263.78 and 352,868.69 is: 486,924.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,367.10 : 882,263.78 = 352,868.69 : x
  2. Step 2: Convert to fraction form
    639,367.10/882,263.78 = 352,868.69/x
  3. Step 3: Cross multiply
    639,367.10x = 882,263.78 × 352,868.69
  4. Step 4: Simplify right side
    639,367.10x = 311,323,264,283.05
  5. Step 5: Solve for x
    x = 311,323,264,283.05/639,367.10
  6. Step 6: Final answer
    x = 486,924.12

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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.