Home / 496,997.34-745,069.05-172,743.30

Finding the Fourth Proportional to 496,997.34, 745,069.05 and 172,743.30

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Solution

The fourth proportional to 496,997.34, 745,069.05 and 172,743.30 is: 258,966.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,997.34 : 745,069.05 = 172,743.30 : x
  2. Step 2: Convert to fraction form
    496,997.34/745,069.05 = 172,743.30/x
  3. Step 3: Cross multiply
    496,997.34x = 745,069.05 × 172,743.30
  4. Step 4: Simplify right side
    496,997.34x = 128,705,686,424.87
  5. Step 5: Solve for x
    x = 128,705,686,424.87/496,997.34
  6. Step 6: Final answer
    x = 258,966.55

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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.