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Finding the Fourth Proportional to 471,139.52, 650,062.60 and 274,875.40

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Solution

The fourth proportional to 471,139.52, 650,062.60 and 274,875.40 is: 379,263.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,139.52 : 650,062.60 = 274,875.40 : x
  2. Step 2: Convert to fraction form
    471,139.52/650,062.60 = 274,875.40/x
  3. Step 3: Cross multiply
    471,139.52x = 650,062.60 × 274,875.40
  4. Step 4: Simplify right side
    471,139.52x = 178,686,217,843.87
  5. Step 5: Solve for x
    x = 178,686,217,843.87/471,139.52
  6. Step 6: Final answer
    x = 379,263.92

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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.