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Finding the Fourth Proportional to 702,691.79, 969,706.62 and 380,394.81

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Solution

The fourth proportional to 702,691.79, 969,706.62 and 380,394.81 is: 524,940.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,691.79 : 969,706.62 = 380,394.81 : x
  2. Step 2: Convert to fraction form
    702,691.79/969,706.62 = 380,394.81/x
  3. Step 3: Cross multiply
    702,691.79x = 969,706.62 × 380,394.81
  4. Step 4: Simplify right side
    702,691.79x = 368,871,365,470.64
  5. Step 5: Solve for x
    x = 368,871,365,470.64/702,691.79
  6. Step 6: Final answer
    x = 524,940.48

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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.