Home / 791,398.22-1,092,149.72-485,643.47

Finding the Fourth Proportional to 791,398.22, 1,092,149.72 and 485,643.47

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Solution

The fourth proportional to 791,398.22, 1,092,149.72 and 485,643.47 is: 670,200.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,398.22 : 1,092,149.72 = 485,643.47 : x
  2. Step 2: Convert to fraction form
    791,398.22/1,092,149.72 = 485,643.47/x
  3. Step 3: Cross multiply
    791,398.22x = 1,092,149.72 × 485,643.47
  4. Step 4: Simplify right side
    791,398.22x = 530,395,380,994.44
  5. Step 5: Solve for x
    x = 530,395,380,994.44/791,398.22
  6. Step 6: Final answer
    x = 670,200.37

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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.