Home / 641,381.28-962,403.92-465,341.28

Finding the Fourth Proportional to 641,381.28, 962,403.92 and 465,341.28

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Solution

The fourth proportional to 641,381.28, 962,403.92 and 465,341.28 is: 698,252.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,381.28 : 962,403.92 = 465,341.28 : x
  2. Step 2: Convert to fraction form
    641,381.28/962,403.92 = 465,341.28/x
  3. Step 3: Cross multiply
    641,381.28x = 962,403.92 × 465,341.28
  4. Step 4: Simplify right side
    641,381.28x = 447,846,272,009.82
  5. Step 5: Solve for x
    x = 447,846,272,009.82/641,381.28
  6. Step 6: Final answer
    x = 698,252.80

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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.