Home / 789,587.70-1,089,620.01-450,061.62

Finding the Fourth Proportional to 789,587.70, 1,089,620.01 and 450,061.62

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Solution

The fourth proportional to 789,587.70, 1,089,620.01 and 450,061.62 is: 621,078.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,587.70 : 1,089,620.01 = 450,061.62 : x
  2. Step 2: Convert to fraction form
    789,587.70/1,089,620.01 = 450,061.62/x
  3. Step 3: Cross multiply
    789,587.70x = 1,089,620.01 × 450,061.62
  4. Step 4: Simplify right side
    789,587.70x = 490,396,146,885.02
  5. Step 5: Solve for x
    x = 490,396,146,885.02/789,587.70
  6. Step 6: Final answer
    x = 621,078.76

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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.