Home / 641,934.72-885,765.60-370,013.76

Finding the Fourth Proportional to 641,934.72, 885,765.60 and 370,013.76

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Solution

The fourth proportional to 641,934.72, 885,765.60 and 370,013.76 is: 510,558.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,934.72 : 885,765.60 = 370,013.76 : x
  2. Step 2: Convert to fraction form
    641,934.72/885,765.60 = 370,013.76/x
  3. Step 3: Cross multiply
    641,934.72x = 885,765.60 × 370,013.76
  4. Step 4: Simplify right side
    641,934.72x = 327,745,460,134.66
  5. Step 5: Solve for x
    x = 327,745,460,134.66/641,934.72
  6. Step 6: Final answer
    x = 510,558.86

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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.