Home / 2,718,506.20-4,077,629.70-921,213.40

Finding the Fourth Proportional to 2,718,506.20, 4,077,629.70 and 921,213.40

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Solution

The fourth proportional to 2,718,506.20, 4,077,629.70 and 921,213.40 is: 1,381,776.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718,506.20 : 4,077,629.70 = 921,213.40 : x
  2. Step 2: Convert to fraction form
    2,718,506.20/4,077,629.70 = 921,213.40/x
  3. Step 3: Cross multiply
    2,718,506.20x = 4,077,629.70 × 921,213.40
  4. Step 4: Simplify right side
    2,718,506.20x = 3,756,367,119,877.98
  5. Step 5: Solve for x
    x = 3,756,367,119,877.98/2,718,506.20
  6. Step 6: Final answer
    x = 1,381,776.18

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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.