Home / 789,480.71-1,089,489.91-435,872.92

Finding the Fourth Proportional to 789,480.71, 1,089,489.91 and 435,872.92

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Solution

The fourth proportional to 789,480.71, 1,089,489.91 and 435,872.92 is: 601,508.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,480.71 : 1,089,489.91 = 435,872.92 : x
  2. Step 2: Convert to fraction form
    789,480.71/1,089,489.91 = 435,872.92/x
  3. Step 3: Cross multiply
    789,480.71x = 1,089,489.91 × 435,872.92
  4. Step 4: Simplify right side
    789,480.71x = 474,879,144,518.08
  5. Step 5: Solve for x
    x = 474,879,144,518.08/789,480.71
  6. Step 6: Final answer
    x = 601,508.23

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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.