Home / 499,276.42-689,000.52-272,921.92

Finding the Fourth Proportional to 499,276.42, 689,000.52 and 272,921.92

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Solution

The fourth proportional to 499,276.42, 689,000.52 and 272,921.92 is: 376,631.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,276.42 : 689,000.52 = 272,921.92 : x
  2. Step 2: Convert to fraction form
    499,276.42/689,000.52 = 272,921.92/x
  3. Step 3: Cross multiply
    499,276.42x = 689,000.52 × 272,921.92
  4. Step 4: Simplify right side
    499,276.42x = 188,043,344,799.40
  5. Step 5: Solve for x
    x = 188,043,344,799.40/499,276.42
  6. Step 6: Final answer
    x = 376,631.74

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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.