Home / 3,161,909.12-4,742,847.81-765,753.68

Finding the Fourth Proportional to 3,161,909.12, 4,742,847.81 and 765,753.68

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Solution

The fourth proportional to 3,161,909.12, 4,742,847.81 and 765,753.68 is: 1,148,626.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161,909.12 : 4,742,847.81 = 765,753.68 : x
  2. Step 2: Convert to fraction form
    3,161,909.12/4,742,847.81 = 765,753.68/x
  3. Step 3: Cross multiply
    3,161,909.12x = 4,742,847.81 × 765,753.68
  4. Step 4: Simplify right side
    3,161,909.12x = 3,631,853,176,044.56
  5. Step 5: Solve for x
    x = 3,631,853,176,044.56/3,161,909.12
  6. Step 6: Final answer
    x = 1,148,626.68

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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.