Home / 1,121,417.20-1,682,149.64-401,805.78

Finding the Fourth Proportional to 1,121,417.20, 1,682,149.64 and 401,805.78

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Solution

The fourth proportional to 1,121,417.20, 1,682,149.64 and 401,805.78 is: 602,717.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,417.20 : 1,682,149.64 = 401,805.78 : x
  2. Step 2: Convert to fraction form
    1,121,417.20/1,682,149.64 = 401,805.78/x
  3. Step 3: Cross multiply
    1,121,417.20x = 1,682,149.64 × 401,805.78
  4. Step 4: Simplify right side
    1,121,417.20x = 675,897,448,176.92
  5. Step 5: Solve for x
    x = 675,897,448,176.92/1,121,417.20
  6. Step 6: Final answer
    x = 602,717.21

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1.5x scale

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.