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Finding the Fourth Proportional to 641,370.79, 962,388.15 and 465,330.79

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Solution

The fourth proportional to 641,370.79, 962,388.15 and 465,330.79 is: 698,237.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,370.79 : 962,388.15 = 465,330.79 : x
  2. Step 2: Convert to fraction form
    641,370.79/962,388.15 = 465,330.79/x
  3. Step 3: Cross multiply
    641,370.79x = 962,388.15 × 465,330.79
  4. Step 4: Simplify right side
    641,370.79x = 447,828,838,126.14
  5. Step 5: Solve for x
    x = 447,828,838,126.14/641,370.79
  6. Step 6: Final answer
    x = 698,237.03

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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.