Home / 685,339.30-1,028,008.95-444,801.70

Finding the Fourth Proportional to 685,339.30, 1,028,008.95 and 444,801.70

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Solution

The fourth proportional to 685,339.30, 1,028,008.95 and 444,801.70 is: 667,202.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,339.30 : 1,028,008.95 = 444,801.70 : x
  2. Step 2: Convert to fraction form
    685,339.30/1,028,008.95 = 444,801.70/x
  3. Step 3: Cross multiply
    685,339.30x = 1,028,008.95 × 444,801.70
  4. Step 4: Simplify right side
    685,339.30x = 457,260,128,575.22
  5. Step 5: Solve for x
    x = 457,260,128,575.22/685,339.30
  6. Step 6: Final answer
    x = 667,202.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.