Home / 486,451.05-671,251.52-282,462.20

Finding the Fourth Proportional to 486,451.05, 671,251.52 and 282,462.20

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Solution

The fourth proportional to 486,451.05, 671,251.52 and 282,462.20 is: 389,768.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,451.05 : 671,251.52 = 282,462.20 : x
  2. Step 2: Convert to fraction form
    486,451.05/671,251.52 = 282,462.20/x
  3. Step 3: Cross multiply
    486,451.05x = 671,251.52 × 282,462.20
  4. Step 4: Simplify right side
    486,451.05x = 189,603,181,092.54
  5. Step 5: Solve for x
    x = 189,603,181,092.54/486,451.05
  6. Step 6: Final answer
    x = 389,768.27

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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.