Home / 728,844.40-1,006,273.56-457,284.88

Finding the Fourth Proportional to 728,844.40, 1,006,273.56 and 457,284.88

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Solution

The fourth proportional to 728,844.40, 1,006,273.56 and 457,284.88 is: 631,346.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,844.40 : 1,006,273.56 = 457,284.88 : x
  2. Step 2: Convert to fraction form
    728,844.40/1,006,273.56 = 457,284.88/x
  3. Step 3: Cross multiply
    728,844.40x = 1,006,273.56 × 457,284.88
  4. Step 4: Simplify right side
    728,844.40x = 460,153,684,131.77
  5. Step 5: Solve for x
    x = 460,153,684,131.77/728,844.40
  6. Step 6: Final answer
    x = 631,346.94

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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.