Home / 639,366.98-882,263.61-352,868.57

Finding the Fourth Proportional to 639,366.98, 882,263.61 and 352,868.57

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Solution

The fourth proportional to 639,366.98, 882,263.61 and 352,868.57 is: 486,923.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,366.98 : 882,263.61 = 352,868.57 : x
  2. Step 2: Convert to fraction form
    639,366.98/882,263.61 = 352,868.57/x
  3. Step 3: Cross multiply
    639,366.98x = 882,263.61 × 352,868.57
  4. Step 4: Simplify right side
    639,366.98x = 311,323,094,012.42
  5. Step 5: Solve for x
    x = 311,323,094,012.42/639,366.98
  6. Step 6: Final answer
    x = 486,923.95

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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.