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Finding the Fourth Proportional to 608,020.47, 839,015.96 and 349,808.67

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Solution

The fourth proportional to 608,020.47, 839,015.96 and 349,808.67 is: 482,705.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,020.47 : 839,015.96 = 349,808.67 : x
  2. Step 2: Convert to fraction form
    608,020.47/839,015.96 = 349,808.67/x
  3. Step 3: Cross multiply
    608,020.47x = 839,015.96 × 349,808.67
  4. Step 4: Simplify right side
    608,020.47x = 293,495,055,327.33
  5. Step 5: Solve for x
    x = 293,495,055,327.33/608,020.47
  6. Step 6: Final answer
    x = 482,705.88

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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.