Home / 845,815.39-1,266,478.36-661,610.45

Finding the Fourth Proportional to 845,815.39, 1,266,478.36 and 661,610.45

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Solution

The fourth proportional to 845,815.39, 1,266,478.36 and 661,610.45 is: 990,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,815.39 : 1,266,478.36 = 661,610.45 : x
  2. Step 2: Convert to fraction form
    845,815.39/1,266,478.36 = 661,610.45/x
  3. Step 3: Cross multiply
    845,815.39x = 1,266,478.36 × 661,610.45
  4. Step 4: Simplify right side
    845,815.39x = 837,915,317,674.86
  5. Step 5: Solve for x
    x = 837,915,317,674.86/845,815.39
  6. Step 6: Final answer
    x = 990,659.81

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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.