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Finding the Fourth Proportional to 667,195.09, 920,795.18 and 380,758.24

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Solution

The fourth proportional to 667,195.09, 920,795.18 and 380,758.24 is: 525,484.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,195.09 : 920,795.18 = 380,758.24 : x
  2. Step 2: Convert to fraction form
    667,195.09/920,795.18 = 380,758.24/x
  3. Step 3: Cross multiply
    667,195.09x = 920,795.18 × 380,758.24
  4. Step 4: Simplify right side
    667,195.09x = 350,600,346,205.01
  5. Step 5: Solve for x
    x = 350,600,346,205.01/667,195.09
  6. Step 6: Final answer
    x = 525,484.00

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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.