Home / 780,969.48-1,170,116.91-426,232.41

Finding the Fourth Proportional to 780,969.48, 1,170,116.91 and 426,232.41

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Solution

The fourth proportional to 780,969.48, 1,170,116.91 and 426,232.41 is: 638,618.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,969.48 : 1,170,116.91 = 426,232.41 : x
  2. Step 2: Convert to fraction form
    780,969.48/1,170,116.91 = 426,232.41/x
  3. Step 3: Cross multiply
    780,969.48x = 1,170,116.91 × 426,232.41
  4. Step 4: Simplify right side
    780,969.48x = 498,741,750,531.05
  5. Step 5: Solve for x
    x = 498,741,750,531.05/780,969.48
  6. Step 6: Final answer
    x = 638,618.75

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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.