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Finding the Fourth Proportional to 1,330,652.82, 1,836,318.45 and 757,695.30

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Solution

The fourth proportional to 1,330,652.82, 1,836,318.45 and 757,695.30 is: 1,045,629.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,652.82 : 1,836,318.45 = 757,695.30 : x
  2. Step 2: Convert to fraction form
    1,330,652.82/1,836,318.45 = 757,695.30/x
  3. Step 3: Cross multiply
    1,330,652.82x = 1,836,318.45 × 757,695.30
  4. Step 4: Simplify right side
    1,330,652.82x = 1,391,369,858,868.29
  5. Step 5: Solve for x
    x = 1,391,369,858,868.29/1,330,652.82
  6. Step 6: Final answer
    x = 1,045,629.51

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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.