Home / 1,787,261.28-2,679,386.12-775,621.50

Finding the Fourth Proportional to 1,787,261.28, 2,679,386.12 and 775,621.50

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Solution

The fourth proportional to 1,787,261.28, 2,679,386.12 and 775,621.50 is: 1,162,778.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,261.28 : 2,679,386.12 = 775,621.50 : x
  2. Step 2: Convert to fraction form
    1,787,261.28/2,679,386.12 = 775,621.50/x
  3. Step 3: Cross multiply
    1,787,261.28x = 2,679,386.12 × 775,621.50
  4. Step 4: Simplify right side
    1,787,261.28x = 2,078,189,481,473.58
  5. Step 5: Solve for x
    x = 2,078,189,481,473.58/1,787,261.28
  6. Step 6: Final answer
    x = 1,162,778.77

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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.