Home / 1,391,003.36-2,086,646.63-480,067.28

Finding the Fourth Proportional to 1,391,003.36, 2,086,646.63 and 480,067.28

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Solution

The fourth proportional to 1,391,003.36, 2,086,646.63 and 480,067.28 is: 720,149.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,003.36 : 2,086,646.63 = 480,067.28 : x
  2. Step 2: Convert to fraction form
    1,391,003.36/2,086,646.63 = 480,067.28/x
  3. Step 3: Cross multiply
    1,391,003.36x = 2,086,646.63 × 480,067.28
  4. Step 4: Simplify right side
    1,391,003.36x = 1,001,730,771,985.27
  5. Step 5: Solve for x
    x = 1,001,730,771,985.27/1,391,003.36
  6. Step 6: Final answer
    x = 720,149.79

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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.