Home / 499,319.92-689,061.50-272,965.42

Finding the Fourth Proportional to 499,319.92, 689,061.50 and 272,965.42

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Solution

The fourth proportional to 499,319.92, 689,061.50 and 272,965.42 is: 376,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,319.92 : 689,061.50 = 272,965.42 : x
  2. Step 2: Convert to fraction form
    499,319.92/689,061.50 = 272,965.42/x
  3. Step 3: Cross multiply
    499,319.92x = 689,061.50 × 272,965.42
  4. Step 4: Simplify right side
    499,319.92x = 188,089,961,753.33
  5. Step 5: Solve for x
    x = 188,089,961,753.33/499,319.92
  6. Step 6: Final answer
    x = 376,692.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.