Home / 382,949.80-574,683.90-172,479.40

Finding the Fourth Proportional to 382,949.80, 574,683.90 and 172,479.40

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Solution

The fourth proportional to 382,949.80, 574,683.90 and 172,479.40 is: 258,835.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,949.80 : 574,683.90 = 172,479.40 : x
  2. Step 2: Convert to fraction form
    382,949.80/574,683.90 = 172,479.40/x
  3. Step 3: Cross multiply
    382,949.80x = 574,683.90 × 172,479.40
  4. Step 4: Simplify right side
    382,949.80x = 99,121,134,261.66
  5. Step 5: Solve for x
    x = 99,121,134,261.66/382,949.80
  6. Step 6: Final answer
    x = 258,835.84

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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.