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Finding the Fourth Proportional to 508,423.32, 701,600.40 and 278,975.43

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Solution

The fourth proportional to 508,423.32, 701,600.40 and 278,975.43 is: 384,973.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,423.32 : 701,600.40 = 278,975.43 : x
  2. Step 2: Convert to fraction form
    508,423.32/701,600.40 = 278,975.43/x
  3. Step 3: Cross multiply
    508,423.32x = 701,600.40 × 278,975.43
  4. Step 4: Simplify right side
    508,423.32x = 195,729,273,278.17
  5. Step 5: Solve for x
    x = 195,729,273,278.17/508,423.32
  6. Step 6: Final answer
    x = 384,973.04

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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.