Home / 452,579.25-678,956.30-172,074.69

Finding the Fourth Proportional to 452,579.25, 678,956.30 and 172,074.69

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Solution

The fourth proportional to 452,579.25, 678,956.30 and 172,074.69 is: 258,145.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,579.25 : 678,956.30 = 172,074.69 : x
  2. Step 2: Convert to fraction form
    452,579.25/678,956.30 = 172,074.69/x
  3. Step 3: Cross multiply
    452,579.25x = 678,956.30 × 172,074.69
  4. Step 4: Simplify right side
    452,579.25x = 116,831,193,985.67
  5. Step 5: Solve for x
    x = 116,831,193,985.67/452,579.25
  6. Step 6: Final answer
    x = 258,145.27

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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.