Home / 1,448,607.80-2,172,911.70-1,387,177.40

Finding the Fourth Proportional to 1,448,607.80, 2,172,911.70 and 1,387,177.40

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Solution

The fourth proportional to 1,448,607.80, 2,172,911.70 and 1,387,177.40 is: 2,080,766.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448,607.80 : 2,172,911.70 = 1,387,177.40 : x
  2. Step 2: Convert to fraction form
    1,448,607.80/2,172,911.70 = 1,387,177.40/x
  3. Step 3: Cross multiply
    1,448,607.80x = 2,172,911.70 × 1,387,177.40
  4. Step 4: Simplify right side
    1,448,607.80x = 3,014,214,002,435.58
  5. Step 5: Solve for x
    x = 3,014,214,002,435.58/1,448,607.80
  6. Step 6: Final answer
    x = 2,080,766.10

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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.