Home / 885,014.57-1,221,299.84-540,849.15

Finding the Fourth Proportional to 885,014.57, 1,221,299.84 and 540,849.15

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Solution

The fourth proportional to 885,014.57, 1,221,299.84 and 540,849.15 is: 746,359.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,014.57 : 1,221,299.84 = 540,849.15 : x
  2. Step 2: Convert to fraction form
    885,014.57/1,221,299.84 = 540,849.15/x
  3. Step 3: Cross multiply
    885,014.57x = 1,221,299.84 × 540,849.15
  4. Step 4: Simplify right side
    885,014.57x = 660,538,981,711.26
  5. Step 5: Solve for x
    x = 660,538,981,711.26/885,014.57
  6. Step 6: Final answer
    x = 746,359.44

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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.