Home / 789,919.47-1,090,087.35-427,343.61

Finding the Fourth Proportional to 789,919.47, 1,090,087.35 and 427,343.61

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Solution

The fourth proportional to 789,919.47, 1,090,087.35 and 427,343.61 is: 589,733.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,919.47 : 1,090,087.35 = 427,343.61 : x
  2. Step 2: Convert to fraction form
    789,919.47/1,090,087.35 = 427,343.61/x
  3. Step 3: Cross multiply
    789,919.47x = 1,090,087.35 × 427,343.61
  4. Step 4: Simplify right side
    789,919.47x = 465,841,863,364.33
  5. Step 5: Solve for x
    x = 465,841,863,364.33/789,919.47
  6. Step 6: Final answer
    x = 589,733.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.