Home / 2,478,811.50-3,420,683.09-1,376,219.04

Finding the Fourth Proportional to 2,478,811.50, 3,420,683.09 and 1,376,219.04

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Solution

The fourth proportional to 2,478,811.50, 3,420,683.09 and 1,376,219.04 is: 1,899,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478,811.50 : 3,420,683.09 = 1,376,219.04 : x
  2. Step 2: Convert to fraction form
    2,478,811.50/3,420,683.09 = 1,376,219.04/x
  3. Step 3: Cross multiply
    2,478,811.50x = 3,420,683.09 × 1,376,219.04
  4. Step 4: Simplify right side
    2,478,811.50x = 4,707,609,198,264.03
  5. Step 5: Solve for x
    x = 4,707,609,198,264.03/2,478,811.50
  6. Step 6: Final answer
    x = 1,899,139.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.