Home / 642,917.76-964,383.96-243,450.06

Finding the Fourth Proportional to 642,917.76, 964,383.96 and 243,450.06

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Solution

The fourth proportional to 642,917.76, 964,383.96 and 243,450.06 is: 365,177.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,917.76 : 964,383.96 = 243,450.06 : x
  2. Step 2: Convert to fraction form
    642,917.76/964,383.96 = 243,450.06/x
  3. Step 3: Cross multiply
    642,917.76x = 964,383.96 × 243,450.06
  4. Step 4: Simplify right side
    642,917.76x = 234,779,332,925.04
  5. Step 5: Solve for x
    x = 234,779,332,925.04/642,917.76
  6. Step 6: Final answer
    x = 365,177.86

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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.