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Finding the Fourth Proportional to 667,250.58, 920,871.67 and 380,813.52

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Solution

The fourth proportional to 667,250.58, 920,871.67 and 380,813.52 is: 525,560.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,250.58 : 920,871.67 = 380,813.52 : x
  2. Step 2: Convert to fraction form
    667,250.58/920,871.67 = 380,813.52/x
  3. Step 3: Cross multiply
    667,250.58x = 920,871.67 × 380,813.52
  4. Step 4: Simplify right side
    667,250.58x = 350,680,385,336.24
  5. Step 5: Solve for x
    x = 350,680,385,336.24/667,250.58
  6. Step 6: Final answer
    x = 525,560.25

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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.