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Finding the Fourth Proportional to 702,392.49, 969,301.64 and 380,102.56

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Solution

The fourth proportional to 702,392.49, 969,301.64 and 380,102.56 is: 524,541.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,392.49 : 969,301.64 = 380,102.56 : x
  2. Step 2: Convert to fraction form
    702,392.49/969,301.64 = 380,102.56/x
  3. Step 3: Cross multiply
    702,392.49x = 969,301.64 × 380,102.56
  4. Step 4: Simplify right side
    702,392.49x = 368,434,034,776.20
  5. Step 5: Solve for x
    x = 368,434,034,776.20/702,392.49
  6. Step 6: Final answer
    x = 524,541.53

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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.