Home / 1,628,002.80-2,442,004.20-1,387,465.20

Finding the Fourth Proportional to 1,628,002.80, 2,442,004.20 and 1,387,465.20

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Solution

The fourth proportional to 1,628,002.80, 2,442,004.20 and 1,387,465.20 is: 2,081,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628,002.80 : 2,442,004.20 = 1,387,465.20 : x
  2. Step 2: Convert to fraction form
    1,628,002.80/2,442,004.20 = 1,387,465.20/x
  3. Step 3: Cross multiply
    1,628,002.80x = 2,442,004.20 × 1,387,465.20
  4. Step 4: Simplify right side
    1,628,002.80x = 3,388,195,845,753.84
  5. Step 5: Solve for x
    x = 3,388,195,845,753.84/1,628,002.80
  6. Step 6: Final answer
    x = 2,081,197.80

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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.