Home / 788,976.79-1,088,792.96-426,399.80

Finding the Fourth Proportional to 788,976.79, 1,088,792.96 and 426,399.80

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Solution

The fourth proportional to 788,976.79, 1,088,792.96 and 426,399.80 is: 588,434.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,976.79 : 1,088,792.96 = 426,399.80 : x
  2. Step 2: Convert to fraction form
    788,976.79/1,088,792.96 = 426,399.80/x
  3. Step 3: Cross multiply
    788,976.79x = 1,088,792.96 × 426,399.80
  4. Step 4: Simplify right side
    788,976.79x = 464,261,100,385.41
  5. Step 5: Solve for x
    x = 464,261,100,385.41/788,976.79
  6. Step 6: Final answer
    x = 588,434.42

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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.