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Finding the Fourth Proportional to 508,745.27, 702,065.51 and 279,306.42

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Solution

The fourth proportional to 508,745.27, 702,065.51 and 279,306.42 is: 385,441.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,745.27 : 702,065.51 = 279,306.42 : x
  2. Step 2: Convert to fraction form
    508,745.27/702,065.51 = 279,306.42/x
  3. Step 3: Cross multiply
    508,745.27x = 702,065.51 × 279,306.42
  4. Step 4: Simplify right side
    508,745.27x = 196,091,404,203.57
  5. Step 5: Solve for x
    x = 196,091,404,203.57/508,745.27
  6. Step 6: Final answer
    x = 385,441.23

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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.