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Finding the Fourth Proportional to 508,573, 701,863.57 and 282,218.50

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Solution

The fourth proportional to 508,573, 701,863.57 and 282,218.50 is: 389,479.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,573 : 701,863.57 = 282,218.50 : x
  2. Step 2: Convert to fraction form
    508,573/701,863.57 = 282,218.50/x
  3. Step 3: Cross multiply
    508,573x = 701,863.57 × 282,218.50
  4. Step 4: Simplify right side
    508,573x = 198,078,883,930.05
  5. Step 5: Solve for x
    x = 198,078,883,930.05/508,573
  6. Step 6: Final answer
    x = 389,479.75

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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.