Home / 485,458.74-669,917.63-304,268.52

Finding the Fourth Proportional to 485,458.74, 669,917.63 and 304,268.52

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Solution

The fourth proportional to 485,458.74, 669,917.63 and 304,268.52 is: 419,880.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,458.74 : 669,917.63 = 304,268.52 : x
  2. Step 2: Convert to fraction form
    485,458.74/669,917.63 = 304,268.52/x
  3. Step 3: Cross multiply
    485,458.74x = 669,917.63 × 304,268.52
  4. Step 4: Simplify right side
    485,458.74x = 203,834,844,280.67
  5. Step 5: Solve for x
    x = 203,834,844,280.67/485,458.74
  6. Step 6: Final answer
    x = 419,880.88

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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.