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Finding the Fourth Proportional to 508,585.77, 701,849.25 and 279,144.57

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Solution

The fourth proportional to 508,585.77, 701,849.25 and 279,144.57 is: 385,219.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,585.77 : 701,849.25 = 279,144.57 : x
  2. Step 2: Convert to fraction form
    508,585.77/701,849.25 = 279,144.57/x
  3. Step 3: Cross multiply
    508,585.77x = 701,849.25 × 279,144.57
  4. Step 4: Simplify right side
    508,585.77x = 195,917,407,096.07
  5. Step 5: Solve for x
    x = 195,917,407,096.07/508,585.77
  6. Step 6: Final answer
    x = 385,219.99

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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.