Home / 465,422.40-642,334.92-281,762.17

Finding the Fourth Proportional to 465,422.40, 642,334.92 and 281,762.17

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Solution

The fourth proportional to 465,422.40, 642,334.92 and 281,762.17 is: 388,863.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,422.40 : 642,334.92 = 281,762.17 : x
  2. Step 2: Convert to fraction form
    465,422.40/642,334.92 = 281,762.17/x
  3. Step 3: Cross multiply
    465,422.40x = 642,334.92 × 281,762.17
  4. Step 4: Simplify right side
    465,422.40x = 180,985,676,305.49
  5. Step 5: Solve for x
    x = 180,985,676,305.49/465,422.40
  6. Step 6: Final answer
    x = 388,863.27

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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.