Home / 918,614.80-1,374,811.80-806,640.40

Finding the Fourth Proportional to 918,614.80, 1,374,811.80 and 806,640.40

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Solution

The fourth proportional to 918,614.80, 1,374,811.80 and 806,640.40 is: 1,207,229.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,614.80 : 1,374,811.80 = 806,640.40 : x
  2. Step 2: Convert to fraction form
    918,614.80/1,374,811.80 = 806,640.40/x
  3. Step 3: Cross multiply
    918,614.80x = 1,374,811.80 × 806,640.40
  4. Step 4: Simplify right side
    918,614.80x = 1,108,978,740,276.72
  5. Step 5: Solve for x
    x = 1,108,978,740,276.72/918,614.80
  6. Step 6: Final answer
    x = 1,207,229.34

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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.