Home / 789,874.76-1,090,023.80-427,297.72

Finding the Fourth Proportional to 789,874.76, 1,090,023.80 and 427,297.72

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Solution

The fourth proportional to 789,874.76, 1,090,023.80 and 427,297.72 is: 589,669.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,874.76 : 1,090,023.80 = 427,297.72 : x
  2. Step 2: Convert to fraction form
    789,874.76/1,090,023.80 = 427,297.72/x
  3. Step 3: Cross multiply
    789,874.76x = 1,090,023.80 × 427,297.72
  4. Step 4: Simplify right side
    789,874.76x = 465,764,684,485.74
  5. Step 5: Solve for x
    x = 465,764,684,485.74/789,874.76
  6. Step 6: Final answer
    x = 589,669.03

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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.