Home / 499,119.06-688,782.78-272,764.56

Finding the Fourth Proportional to 499,119.06, 688,782.78 and 272,764.56

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Solution

The fourth proportional to 499,119.06, 688,782.78 and 272,764.56 is: 376,414.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,119.06 : 688,782.78 = 272,764.56 : x
  2. Step 2: Convert to fraction form
    499,119.06/688,782.78 = 272,764.56/x
  3. Step 3: Cross multiply
    499,119.06x = 688,782.78 × 272,764.56
  4. Step 4: Simplify right side
    499,119.06x = 187,875,531,922.28
  5. Step 5: Solve for x
    x = 187,875,531,922.28/499,119.06
  6. Step 6: Final answer
    x = 376,414.26

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1.5x scale

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.