Home / 418,985.26-628,479.10-152,745.35

Finding the Fourth Proportional to 418,985.26, 628,479.10 and 152,745.35

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Solution

The fourth proportional to 418,985.26, 628,479.10 and 152,745.35 is: 229,118.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,985.26 : 628,479.10 = 152,745.35 : x
  2. Step 2: Convert to fraction form
    418,985.26/628,479.10 = 152,745.35/x
  3. Step 3: Cross multiply
    418,985.26x = 628,479.10 × 152,745.35
  4. Step 4: Simplify right side
    418,985.26x = 95,997,257,145.72
  5. Step 5: Solve for x
    x = 95,997,257,145.72/418,985.26
  6. Step 6: Final answer
    x = 229,118.46

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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.