Home / 2,718,429.20-4,077,514.20-921,136.40

Finding the Fourth Proportional to 2,718,429.20, 4,077,514.20 and 921,136.40

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Solution

The fourth proportional to 2,718,429.20, 4,077,514.20 and 921,136.40 is: 1,381,660.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718,429.20 : 4,077,514.20 = 921,136.40 : x
  2. Step 2: Convert to fraction form
    2,718,429.20/4,077,514.20 = 921,136.40/x
  3. Step 3: Cross multiply
    2,718,429.20x = 4,077,514.20 × 921,136.40
  4. Step 4: Simplify right side
    2,718,429.20x = 3,755,946,751,136.88
  5. Step 5: Solve for x
    x = 3,755,946,751,136.88/2,718,429.20
  6. Step 6: Final answer
    x = 1,381,660.69

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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.