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Finding the Fourth Proportional to 1,382,406, 2,073,727.80 and 385,134

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Solution

The fourth proportional to 1,382,406, 2,073,727.80 and 385,134 is: 577,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,406 : 2,073,727.80 = 385,134 : x
  2. Step 2: Convert to fraction form
    1,382,406/2,073,727.80 = 385,134/x
  3. Step 3: Cross multiply
    1,382,406x = 2,073,727.80 × 385,134
  4. Step 4: Simplify right side
    1,382,406x = 798,663,082,525.20
  5. Step 5: Solve for x
    x = 798,663,082,525.20/1,382,406
  6. Step 6: Final answer
    x = 577,734.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.