Home / 722,397.12-996,924.60-395,741.34

Finding the Fourth Proportional to 722,397.12, 996,924.60 and 395,741.34

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Solution

The fourth proportional to 722,397.12, 996,924.60 and 395,741.34 is: 546,132.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,397.12 : 996,924.60 = 395,741.34 : x
  2. Step 2: Convert to fraction form
    722,397.12/996,924.60 = 395,741.34/x
  3. Step 3: Cross multiply
    722,397.12x = 996,924.60 × 395,741.34
  4. Step 4: Simplify right side
    722,397.12x = 394,524,277,082.96
  5. Step 5: Solve for x
    x = 394,524,277,082.96/722,397.12
  6. Step 6: Final answer
    x = 546,132.13

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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.