Home / 918,717.80-1,374,966.30-806,743.40

Finding the Fourth Proportional to 918,717.80, 1,374,966.30 and 806,743.40

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Solution

The fourth proportional to 918,717.80, 1,374,966.30 and 806,743.40 is: 1,207,383.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,717.80 : 1,374,966.30 = 806,743.40 : x
  2. Step 2: Convert to fraction form
    918,717.80/1,374,966.30 = 806,743.40/x
  3. Step 3: Cross multiply
    918,717.80x = 1,374,966.30 × 806,743.40
  4. Step 4: Simplify right side
    918,717.80x = 1,109,244,987,747.42
  5. Step 5: Solve for x
    x = 1,109,244,987,747.42/918,717.80
  6. Step 6: Final answer
    x = 1,207,383.80

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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.