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Finding the Fourth Proportional to 641,857.76, 885,773.04 and 369,775.52

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Solution

The fourth proportional to 641,857.76, 885,773.04 and 369,775.52 is: 510,295.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,857.76 : 885,773.04 = 369,775.52 : x
  2. Step 2: Convert to fraction form
    641,857.76/885,773.04 = 369,775.52/x
  3. Step 3: Cross multiply
    641,857.76x = 885,773.04 × 369,775.52
  4. Step 4: Simplify right side
    641,857.76x = 327,537,186,467.98
  5. Step 5: Solve for x
    x = 327,537,186,467.98/641,857.76
  6. Step 6: Final answer
    x = 510,295.59

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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.