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Finding the Fourth Proportional to 701,759.72, 968,434.20 and 387,441.68

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Solution

The fourth proportional to 701,759.72, 968,434.20 and 387,441.68 is: 534,672.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,759.72 : 968,434.20 = 387,441.68 : x
  2. Step 2: Convert to fraction form
    701,759.72/968,434.20 = 387,441.68/x
  3. Step 3: Cross multiply
    701,759.72x = 968,434.20 × 387,441.68
  4. Step 4: Simplify right side
    701,759.72x = 375,211,768,575.29
  5. Step 5: Solve for x
    x = 375,211,768,575.29/701,759.72
  6. Step 6: Final answer
    x = 534,672.71

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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.