Home / 789,151.18-1,089,135.28-445,057.86

Finding the Fourth Proportional to 789,151.18, 1,089,135.28 and 445,057.86

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Solution

The fourth proportional to 789,151.18, 1,089,135.28 and 445,057.86 is: 614,240.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,151.18 : 1,089,135.28 = 445,057.86 : x
  2. Step 2: Convert to fraction form
    789,151.18/1,089,135.28 = 445,057.86/x
  3. Step 3: Cross multiply
    789,151.18x = 1,089,135.28 × 445,057.86
  4. Step 4: Simplify right side
    789,151.18x = 484,728,216,967.30
  5. Step 5: Solve for x
    x = 484,728,216,967.30/789,151.18
  6. Step 6: Final answer
    x = 614,240.00

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Double scale
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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.