Home / 745,150.83-1,028,249.52-422,860.93

Finding the Fourth Proportional to 745,150.83, 1,028,249.52 and 422,860.93

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Solution

The fourth proportional to 745,150.83, 1,028,249.52 and 422,860.93 is: 583,514.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,150.83 : 1,028,249.52 = 422,860.93 : x
  2. Step 2: Convert to fraction form
    745,150.83/1,028,249.52 = 422,860.93/x
  3. Step 3: Cross multiply
    745,150.83x = 1,028,249.52 × 422,860.93
  4. Step 4: Simplify right side
    745,150.83x = 434,806,548,299.25
  5. Step 5: Solve for x
    x = 434,806,548,299.25/745,150.83
  6. Step 6: Final answer
    x = 583,514.81

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1.5x scale

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.