Home / 1,391,009.40-2,086,655.64-480,073.32

Finding the Fourth Proportional to 1,391,009.40, 2,086,655.64 and 480,073.32

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Solution

The fourth proportional to 1,391,009.40, 2,086,655.64 and 480,073.32 is: 720,158.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,009.40 : 2,086,655.64 = 480,073.32 : x
  2. Step 2: Convert to fraction form
    1,391,009.40/2,086,655.64 = 480,073.32/x
  3. Step 3: Cross multiply
    1,391,009.40x = 2,086,655.64 × 480,073.32
  4. Step 4: Simplify right side
    1,391,009.40x = 1,001,747,700,791.52
  5. Step 5: Solve for x
    x = 1,001,747,700,791.52/1,391,009.40
  6. Step 6: Final answer
    x = 720,158.83

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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.