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Finding the Fourth Proportional to 486,353.37, 671,308.80 and 282,450.45

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Solution

The fourth proportional to 486,353.37, 671,308.80 and 282,450.45 is: 389,863.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,353.37 : 671,308.80 = 282,450.45 : x
  2. Step 2: Convert to fraction form
    486,353.37/671,308.80 = 282,450.45/x
  3. Step 3: Cross multiply
    486,353.37x = 671,308.80 × 282,450.45
  4. Step 4: Simplify right side
    486,353.37x = 189,611,472,648.96
  5. Step 5: Solve for x
    x = 189,611,472,648.96/486,353.37
  6. Step 6: Final answer
    x = 389,863.59

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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.