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Finding the Fourth Proportional to 520,842.42, 781,338.47 and 161,041.34

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Solution

The fourth proportional to 520,842.42, 781,338.47 and 161,041.34 is: 241,585.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,842.42 : 781,338.47 = 161,041.34 : x
  2. Step 2: Convert to fraction form
    520,842.42/781,338.47 = 161,041.34/x
  3. Step 3: Cross multiply
    520,842.42x = 781,338.47 × 161,041.34
  4. Step 4: Simplify right side
    520,842.42x = 125,827,794,202.35
  5. Step 5: Solve for x
    x = 125,827,794,202.35/520,842.42
  6. Step 6: Final answer
    x = 241,585.15

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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.