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Finding the Fourth Proportional to 641,263.95, 884,866.46 and 369,419.85

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Solution

The fourth proportional to 641,263.95, 884,866.46 and 369,419.85 is: 509,754.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,263.95 : 884,866.46 = 369,419.85 : x
  2. Step 2: Convert to fraction form
    641,263.95/884,866.46 = 369,419.85/x
  3. Step 3: Cross multiply
    641,263.95x = 884,866.46 × 369,419.85
  4. Step 4: Simplify right side
    641,263.95x = 326,887,233,076.13
  5. Step 5: Solve for x
    x = 326,887,233,076.13/641,263.95
  6. Step 6: Final answer
    x = 509,754.58

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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.