Home / 855,448.88-1,180,644.12-492,802.97

Finding the Fourth Proportional to 855,448.88, 1,180,644.12 and 492,802.97

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Solution

The fourth proportional to 855,448.88, 1,180,644.12 and 492,802.97 is: 680,139.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,448.88 : 1,180,644.12 = 492,802.97 : x
  2. Step 2: Convert to fraction form
    855,448.88/1,180,644.12 = 492,802.97/x
  3. Step 3: Cross multiply
    855,448.88x = 1,180,644.12 × 492,802.97
  4. Step 4: Simplify right side
    855,448.88x = 581,824,928,849.04
  5. Step 5: Solve for x
    x = 581,824,928,849.04/855,448.88
  6. Step 6: Final answer
    x = 680,139.92

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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.