Home / 611,716.64-917,584.19-212,370.10

Finding the Fourth Proportional to 611,716.64, 917,584.19 and 212,370.10

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Solution

The fourth proportional to 611,716.64, 917,584.19 and 212,370.10 is: 318,558.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,716.64 : 917,584.19 = 212,370.10 : x
  2. Step 2: Convert to fraction form
    611,716.64/917,584.19 = 212,370.10/x
  3. Step 3: Cross multiply
    611,716.64x = 917,584.19 × 212,370.10
  4. Step 4: Simplify right side
    611,716.64x = 194,867,446,188.72
  5. Step 5: Solve for x
    x = 194,867,446,188.72/611,716.64
  6. Step 6: Final answer
    x = 318,558.35

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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.