Home / 499,063.56-688,724.70-272,723.64

Finding the Fourth Proportional to 499,063.56, 688,724.70 and 272,723.64

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Solution

The fourth proportional to 499,063.56, 688,724.70 and 272,723.64 is: 376,367.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,063.56 : 688,724.70 = 272,723.64 : x
  2. Step 2: Convert to fraction form
    499,063.56/688,724.70 = 272,723.64/x
  3. Step 3: Cross multiply
    499,063.56x = 688,724.70 × 272,723.64
  4. Step 4: Simplify right side
    499,063.56x = 187,831,507,141.91
  5. Step 5: Solve for x
    x = 187,831,507,141.91/499,063.56
  6. Step 6: Final answer
    x = 376,367.91

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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.