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Finding the Fourth Proportional to 503,431.20, 756,021.60 and 267,235.20

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Solution

The fourth proportional to 503,431.20, 756,021.60 and 267,235.20 is: 401,317.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,431.20 : 756,021.60 = 267,235.20 : x
  2. Step 2: Convert to fraction form
    503,431.20/756,021.60 = 267,235.20/x
  3. Step 3: Cross multiply
    503,431.20x = 756,021.60 × 267,235.20
  4. Step 4: Simplify right side
    503,431.20x = 202,035,583,480.32
  5. Step 5: Solve for x
    x = 202,035,583,480.32/503,431.20
  6. Step 6: Final answer
    x = 401,317.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.