Home / 611,717.13-917,584.92-212,370.60

Finding the Fourth Proportional to 611,717.13, 917,584.92 and 212,370.60

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Solution

The fourth proportional to 611,717.13, 917,584.92 and 212,370.60 is: 318,559.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,717.13 : 917,584.92 = 212,370.60 : x
  2. Step 2: Convert to fraction form
    611,717.13/917,584.92 = 212,370.60/x
  3. Step 3: Cross multiply
    611,717.13x = 917,584.92 × 212,370.60
  4. Step 4: Simplify right side
    611,717.13x = 194,868,060,011.35
  5. Step 5: Solve for x
    x = 194,868,060,011.35/611,717.13
  6. Step 6: Final answer
    x = 318,559.10

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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.