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Finding the Fourth Proportional to 508,469.28, 701,685.66 and 279,030.42

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Solution

The fourth proportional to 508,469.28, 701,685.66 and 279,030.42 is: 385,060.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,469.28 : 701,685.66 = 279,030.42 : x
  2. Step 2: Convert to fraction form
    508,469.28/701,685.66 = 279,030.42/x
  3. Step 3: Cross multiply
    508,469.28x = 701,685.66 × 279,030.42
  4. Step 4: Simplify right side
    508,469.28x = 195,791,644,417.78
  5. Step 5: Solve for x
    x = 195,791,644,417.78/508,469.28
  6. Step 6: Final answer
    x = 385,060.91

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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.