Home / 744,480.14-1,027,565.07-422,378.78

Finding the Fourth Proportional to 744,480.14, 1,027,565.07 and 422,378.78

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Solution

The fourth proportional to 744,480.14, 1,027,565.07 and 422,378.78 is: 582,986.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,480.14 : 1,027,565.07 = 422,378.78 : x
  2. Step 2: Convert to fraction form
    744,480.14/1,027,565.07 = 422,378.78/x
  3. Step 3: Cross multiply
    744,480.14x = 1,027,565.07 × 422,378.78
  4. Step 4: Simplify right side
    744,480.14x = 434,021,680,637.22
  5. Step 5: Solve for x
    x = 434,021,680,637.22/744,480.14
  6. Step 6: Final answer
    x = 582,986.24

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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.