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Finding the Fourth Proportional to 671,039.94, 926,016.66 and 380,704.62

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Solution

The fourth proportional to 671,039.94, 926,016.66 and 380,704.62 is: 525,361.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,039.94 : 926,016.66 = 380,704.62 : x
  2. Step 2: Convert to fraction form
    671,039.94/926,016.66 = 380,704.62/x
  3. Step 3: Cross multiply
    671,039.94x = 926,016.66 × 380,704.62
  4. Step 4: Simplify right side
    671,039.94x = 352,538,820,658.97
  5. Step 5: Solve for x
    x = 352,538,820,658.97/671,039.94
  6. Step 6: Final answer
    x = 525,361.90

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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.