Home / 646,750.31-892,515.24-356,365.91

Finding the Fourth Proportional to 646,750.31, 892,515.24 and 356,365.91

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Solution

The fourth proportional to 646,750.31, 892,515.24 and 356,365.91 is: 491,784.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,750.31 : 892,515.24 = 356,365.91 : x
  2. Step 2: Convert to fraction form
    646,750.31/892,515.24 = 356,365.91/x
  3. Step 3: Cross multiply
    646,750.31x = 892,515.24 × 356,365.91
  4. Step 4: Simplify right side
    646,750.31x = 318,062,007,922.76
  5. Step 5: Solve for x
    x = 318,062,007,922.76/646,750.31
  6. Step 6: Final answer
    x = 491,784.86

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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.