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Finding the Fourth Proportional to 880,969.83, 1,320,109.58 and 655,238.62

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Solution

The fourth proportional to 880,969.83, 1,320,109.58 and 655,238.62 is: 981,857.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,969.83 : 1,320,109.58 = 655,238.62 : x
  2. Step 2: Convert to fraction form
    880,969.83/1,320,109.58 = 655,238.62/x
  3. Step 3: Cross multiply
    880,969.83x = 1,320,109.58 × 655,238.62
  4. Step 4: Simplify right side
    880,969.83x = 864,986,782,736.21
  5. Step 5: Solve for x
    x = 864,986,782,736.21/880,969.83
  6. Step 6: Final answer
    x = 981,857.45

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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.