Home / 1,282,657.11-1,920,149.91-775,683.78

Finding the Fourth Proportional to 1,282,657.11, 1,920,149.91 and 775,683.78

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Solution

The fourth proportional to 1,282,657.11, 1,920,149.91 and 775,683.78 is: 1,161,206.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,657.11 : 1,920,149.91 = 775,683.78 : x
  2. Step 2: Convert to fraction form
    1,282,657.11/1,920,149.91 = 775,683.78/x
  3. Step 3: Cross multiply
    1,282,657.11x = 1,920,149.91 × 775,683.78
  4. Step 4: Simplify right side
    1,282,657.11x = 1,489,429,140,355.46
  5. Step 5: Solve for x
    x = 1,489,429,140,355.46/1,282,657.11
  6. Step 6: Final answer
    x = 1,161,206.01

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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.