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Finding the Fourth Proportional to 451,754.40, 623,440.62 and 270,431.25

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Solution

The fourth proportional to 451,754.40, 623,440.62 and 270,431.25 is: 373,206.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,754.40 : 623,440.62 = 270,431.25 : x
  2. Step 2: Convert to fraction form
    451,754.40/623,440.62 = 270,431.25/x
  3. Step 3: Cross multiply
    451,754.40x = 623,440.62 × 270,431.25
  4. Step 4: Simplify right side
    451,754.40x = 168,597,826,167.38
  5. Step 5: Solve for x
    x = 168,597,826,167.38/451,754.40
  6. Step 6: Final answer
    x = 373,206.83

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1.5x scale

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.