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Finding the Fourth Proportional to 520,841.42, 781,336.97 and 161,040.34

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Solution

The fourth proportional to 520,841.42, 781,336.97 and 161,040.34 is: 241,583.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,841.42 : 781,336.97 = 161,040.34 : x
  2. Step 2: Convert to fraction form
    520,841.42/781,336.97 = 161,040.34/x
  3. Step 3: Cross multiply
    520,841.42x = 781,336.97 × 161,040.34
  4. Step 4: Simplify right side
    520,841.42x = 125,826,771,303.37
  5. Step 5: Solve for x
    x = 125,826,771,303.37/520,841.42
  6. Step 6: Final answer
    x = 241,583.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.