Home / 641,582.78-885,425.31-369,645.75

Finding the Fourth Proportional to 641,582.78, 885,425.31 and 369,645.75

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Solution

The fourth proportional to 641,582.78, 885,425.31 and 369,645.75 is: 510,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,582.78 : 885,425.31 = 369,645.75 : x
  2. Step 2: Convert to fraction form
    641,582.78/885,425.31 = 369,645.75/x
  3. Step 3: Cross multiply
    641,582.78x = 885,425.31 × 369,645.75
  4. Step 4: Simplify right side
    641,582.78x = 327,293,702,783.93
  5. Step 5: Solve for x
    x = 327,293,702,783.93/641,582.78
  6. Step 6: Final answer
    x = 510,134.80

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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.