Home / 820,918.80-1,229,045.40-727,606.80

Finding the Fourth Proportional to 820,918.80, 1,229,045.40 and 727,606.80

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Solution

The fourth proportional to 820,918.80, 1,229,045.40 and 727,606.80 is: 1,089,342.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,918.80 : 1,229,045.40 = 727,606.80 : x
  2. Step 2: Convert to fraction form
    820,918.80/1,229,045.40 = 727,606.80/x
  3. Step 3: Cross multiply
    820,918.80x = 1,229,045.40 × 727,606.80
  4. Step 4: Simplify right side
    820,918.80x = 894,261,790,548.72
  5. Step 5: Solve for x
    x = 894,261,790,548.72/820,918.80
  6. Step 6: Final answer
    x = 1,089,342.56

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1.5x scale

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.