Home / 447,625.40-671,438.10-425,852.60

Finding the Fourth Proportional to 447,625.40, 671,438.10 and 425,852.60

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Solution

The fourth proportional to 447,625.40, 671,438.10 and 425,852.60 is: 638,778.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,625.40 : 671,438.10 = 425,852.60 : x
  2. Step 2: Convert to fraction form
    447,625.40/671,438.10 = 425,852.60/x
  3. Step 3: Cross multiply
    447,625.40x = 671,438.10 × 425,852.60
  4. Step 4: Simplify right side
    447,625.40x = 285,933,660,624.06
  5. Step 5: Solve for x
    x = 285,933,660,624.06/447,625.40
  6. Step 6: Final answer
    x = 638,778.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.