Home / 642,775.32-964,024.56-263,323.96

Finding the Fourth Proportional to 642,775.32, 964,024.56 and 263,323.96

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Solution

The fourth proportional to 642,775.32, 964,024.56 and 263,323.96 is: 394,929.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,775.32 : 964,024.56 = 263,323.96 : x
  2. Step 2: Convert to fraction form
    642,775.32/964,024.56 = 263,323.96/x
  3. Step 3: Cross multiply
    642,775.32x = 964,024.56 × 263,323.96
  4. Step 4: Simplify right side
    642,775.32x = 253,850,764,676.46
  5. Step 5: Solve for x
    x = 253,850,764,676.46/642,775.32
  6. Step 6: Final answer
    x = 394,929.23

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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.