Home / 1,505,988.48-2,078,451.36-861,319.20

Finding the Fourth Proportional to 1,505,988.48, 2,078,451.36 and 861,319.20

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Solution

The fourth proportional to 1,505,988.48, 2,078,451.36 and 861,319.20 is: 1,188,727.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505,988.48 : 2,078,451.36 = 861,319.20 : x
  2. Step 2: Convert to fraction form
    1,505,988.48/2,078,451.36 = 861,319.20/x
  3. Step 3: Cross multiply
    1,505,988.48x = 2,078,451.36 × 861,319.20
  4. Step 4: Simplify right side
    1,505,988.48x = 1,790,210,062,634.11
  5. Step 5: Solve for x
    x = 1,790,210,062,634.11/1,505,988.48
  6. Step 6: Final answer
    x = 1,188,727.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.