Home / 2,087,871.20-3,131,806.80-1,024,989.20

Finding the Fourth Proportional to 2,087,871.20, 3,131,806.80 and 1,024,989.20

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Solution

The fourth proportional to 2,087,871.20, 3,131,806.80 and 1,024,989.20 is: 1,537,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,871.20 : 3,131,806.80 = 1,024,989.20 : x
  2. Step 2: Convert to fraction form
    2,087,871.20/3,131,806.80 = 1,024,989.20/x
  3. Step 3: Cross multiply
    2,087,871.20x = 3,131,806.80 × 1,024,989.20
  4. Step 4: Simplify right side
    2,087,871.20x = 3,210,068,146,486.56
  5. Step 5: Solve for x
    x = 3,210,068,146,486.56/2,087,871.20
  6. Step 6: Final answer
    x = 1,537,483.80

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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.