Home / 1,879,467.50-2,818,569.42-681,138.92

Finding the Fourth Proportional to 1,879,467.50, 2,818,569.42 and 681,138.92

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Solution

The fourth proportional to 1,879,467.50, 2,818,569.42 and 681,138.92 is: 1,021,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879,467.50 : 2,818,569.42 = 681,138.92 : x
  2. Step 2: Convert to fraction form
    1,879,467.50/2,818,569.42 = 681,138.92/x
  3. Step 3: Cross multiply
    1,879,467.50x = 2,818,569.42 × 681,138.92
  4. Step 4: Simplify right side
    1,879,467.50x = 1,919,837,337,730.25
  5. Step 5: Solve for x
    x = 1,919,837,337,730.25/1,879,467.50
  6. Step 6: Final answer
    x = 1,021,479.40

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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.