Home / 2,069,139.80-3,103,806.90-649,242.20

Finding the Fourth Proportional to 2,069,139.80, 3,103,806.90 and 649,242.20

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Solution

The fourth proportional to 2,069,139.80, 3,103,806.90 and 649,242.20 is: 973,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069,139.80 : 3,103,806.90 = 649,242.20 : x
  2. Step 2: Convert to fraction form
    2,069,139.80/3,103,806.90 = 649,242.20/x
  3. Step 3: Cross multiply
    2,069,139.80x = 3,103,806.90 × 649,242.20
  4. Step 4: Simplify right side
    2,069,139.80x = 2,015,122,420,131.18
  5. Step 5: Solve for x
    x = 2,015,122,420,131.18/2,069,139.80
  6. Step 6: Final answer
    x = 973,893.80

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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.