Home / 789,658.20-1,089,724.86-427,082.49

Finding the Fourth Proportional to 789,658.20, 1,089,724.86 and 427,082.49

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Solution

The fourth proportional to 789,658.20, 1,089,724.86 and 427,082.49 is: 589,371.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,658.20 : 1,089,724.86 = 427,082.49 : x
  2. Step 2: Convert to fraction form
    789,658.20/1,089,724.86 = 427,082.49/x
  3. Step 3: Cross multiply
    789,658.20x = 1,089,724.86 × 427,082.49
  4. Step 4: Simplify right side
    789,658.20x = 465,402,406,623.70
  5. Step 5: Solve for x
    x = 465,402,406,623.70/789,658.20
  6. Step 6: Final answer
    x = 589,371.97

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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.