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Finding the Fourth Proportional to 508,713.72, 702,033.68 and 279,292.25

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Solution

The fourth proportional to 508,713.72, 702,033.68 and 279,292.25 is: 385,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,713.72 : 702,033.68 = 279,292.25 : x
  2. Step 2: Convert to fraction form
    508,713.72/702,033.68 = 279,292.25/x
  3. Step 3: Cross multiply
    508,713.72x = 702,033.68 × 279,292.25
  4. Step 4: Simplify right side
    508,713.72x = 196,072,568,516.30
  5. Step 5: Solve for x
    x = 196,072,568,516.30/508,713.72
  6. Step 6: Final answer
    x = 385,428.11

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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.