Home / 1,387,538.80-2,080,271.40-757,164.40

Finding the Fourth Proportional to 1,387,538.80, 2,080,271.40 and 757,164.40

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Solution

The fourth proportional to 1,387,538.80, 2,080,271.40 and 757,164.40 is: 1,135,180.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,538.80 : 2,080,271.40 = 757,164.40 : x
  2. Step 2: Convert to fraction form
    1,387,538.80/2,080,271.40 = 757,164.40/x
  3. Step 3: Cross multiply
    1,387,538.80x = 2,080,271.40 × 757,164.40
  4. Step 4: Simplify right side
    1,387,538.80x = 1,575,107,446,418.16
  5. Step 5: Solve for x
    x = 1,575,107,446,418.16/1,387,538.80
  6. Step 6: Final answer
    x = 1,135,180.83

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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.