Home / 486,455.17-671,257.21-282,466.33

Finding the Fourth Proportional to 486,455.17, 671,257.21 and 282,466.33

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Solution

The fourth proportional to 486,455.17, 671,257.21 and 282,466.33 is: 389,773.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,455.17 : 671,257.21 = 282,466.33 : x
  2. Step 2: Convert to fraction form
    486,455.17/671,257.21 = 282,466.33/x
  3. Step 3: Cross multiply
    486,455.17x = 671,257.21 × 282,466.33
  4. Step 4: Simplify right side
    486,455.17x = 189,607,560,594.74
  5. Step 5: Solve for x
    x = 189,607,560,594.74/486,455.17
  6. Step 6: Final answer
    x = 389,773.97

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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.