Home / 724,148.80-1,085,786.88-324,717.28

Finding the Fourth Proportional to 724,148.80, 1,085,786.88 and 324,717.28

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Solution

The fourth proportional to 724,148.80, 1,085,786.88 and 324,717.28 is: 486,880.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,148.80 : 1,085,786.88 = 324,717.28 : x
  2. Step 2: Convert to fraction form
    724,148.80/1,085,786.88 = 324,717.28/x
  3. Step 3: Cross multiply
    724,148.80x = 1,085,786.88 × 324,717.28
  4. Step 4: Simplify right side
    724,148.80x = 352,573,762,333.29
  5. Step 5: Solve for x
    x = 352,573,762,333.29/724,148.80
  6. Step 6: Final answer
    x = 486,880.27

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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.