Home / 1,986,751.80-2,980,127.70-490,843.80

Finding the Fourth Proportional to 1,986,751.80, 2,980,127.70 and 490,843.80

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Solution

The fourth proportional to 1,986,751.80, 2,980,127.70 and 490,843.80 is: 736,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,751.80 : 2,980,127.70 = 490,843.80 : x
  2. Step 2: Convert to fraction form
    1,986,751.80/2,980,127.70 = 490,843.80/x
  3. Step 3: Cross multiply
    1,986,751.80x = 2,980,127.70 × 490,843.80
  4. Step 4: Simplify right side
    1,986,751.80x = 1,462,777,204,753.26
  5. Step 5: Solve for x
    x = 1,462,777,204,753.26/1,986,751.80
  6. Step 6: Final answer
    x = 736,265.70

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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.