Home / 857,228.04-1,182,979.44-494,667.12

Finding the Fourth Proportional to 857,228.04, 1,182,979.44 and 494,667.12

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Solution

The fourth proportional to 857,228.04, 1,182,979.44 and 494,667.12 is: 682,643.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,228.04 : 1,182,979.44 = 494,667.12 : x
  2. Step 2: Convert to fraction form
    857,228.04/1,182,979.44 = 494,667.12/x
  3. Step 3: Cross multiply
    857,228.04x = 1,182,979.44 × 494,667.12
  4. Step 4: Simplify right side
    857,228.04x = 585,181,032,604.01
  5. Step 5: Solve for x
    x = 585,181,032,604.01/857,228.04
  6. Step 6: Final answer
    x = 682,643.36

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Double scale
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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.