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Finding the Fourth Proportional to 508,460.79, 701,673.97 and 279,021.94

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Solution

The fourth proportional to 508,460.79, 701,673.97 and 279,021.94 is: 385,049.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,460.79 : 701,673.97 = 279,021.94 : x
  2. Step 2: Convert to fraction form
    508,460.79/701,673.97 = 279,021.94/x
  3. Step 3: Cross multiply
    508,460.79x = 701,673.97 × 279,021.94
  4. Step 4: Simplify right side
    508,460.79x = 195,782,431,617.04
  5. Step 5: Solve for x
    x = 195,782,431,617.04/508,460.79
  6. Step 6: Final answer
    x = 385,049.22

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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.