Home / 765,824.07-1,148,022.49-260,039.21

Finding the Fourth Proportional to 765,824.07, 1,148,022.49 and 260,039.21

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Solution

The fourth proportional to 765,824.07, 1,148,022.49 and 260,039.21 is: 389,816.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,824.07 : 1,148,022.49 = 260,039.21 : x
  2. Step 2: Convert to fraction form
    765,824.07/1,148,022.49 = 260,039.21/x
  3. Step 3: Cross multiply
    765,824.07x = 1,148,022.49 × 260,039.21
  4. Step 4: Simplify right side
    765,824.07x = 298,530,864,069.37
  5. Step 5: Solve for x
    x = 298,530,864,069.37/765,824.07
  6. Step 6: Final answer
    x = 389,816.51

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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.