Home / 486,458.18-671,261.34-282,469.34

Finding the Fourth Proportional to 486,458.18, 671,261.34 and 282,469.34

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Solution

The fourth proportional to 486,458.18, 671,261.34 and 282,469.34 is: 389,778.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,458.18 : 671,261.34 = 282,469.34 : x
  2. Step 2: Convert to fraction form
    486,458.18/671,261.34 = 282,469.34/x
  3. Step 3: Cross multiply
    486,458.18x = 671,261.34 × 282,469.34
  4. Step 4: Simplify right side
    486,458.18x = 189,610,747,677.32
  5. Step 5: Solve for x
    x = 189,610,747,677.32/486,458.18
  6. Step 6: Final answer
    x = 389,778.11

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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.