Home / 789,954.06-1,090,133.64-427,376.76

Finding the Fourth Proportional to 789,954.06, 1,090,133.64 and 427,376.76

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Solution

The fourth proportional to 789,954.06, 1,090,133.64 and 427,376.76 is: 589,778.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,954.06 : 1,090,133.64 = 427,376.76 : x
  2. Step 2: Convert to fraction form
    789,954.06/1,090,133.64 = 427,376.76/x
  3. Step 3: Cross multiply
    789,954.06x = 1,090,133.64 × 427,376.76
  4. Step 4: Simplify right side
    789,954.06x = 465,897,783,030.21
  5. Step 5: Solve for x
    x = 465,897,783,030.21/789,954.06
  6. Step 6: Final answer
    x = 589,778.33

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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.