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Finding the Fourth Proportional to 633,168.69, 873,768.78 and 342,778.11

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Solution

The fourth proportional to 633,168.69, 873,768.78 and 342,778.11 is: 473,031.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,168.69 : 873,768.78 = 342,778.11 : x
  2. Step 2: Convert to fraction form
    633,168.69/873,768.78 = 342,778.11/x
  3. Step 3: Cross multiply
    633,168.69x = 873,768.78 × 342,778.11
  4. Step 4: Simplify right side
    633,168.69x = 299,508,810,985.41
  5. Step 5: Solve for x
    x = 299,508,810,985.41/633,168.69
  6. Step 6: Final answer
    x = 473,031.62

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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.