Home / 789,358.92-1,089,318.35-440,514.20

Finding the Fourth Proportional to 789,358.92, 1,089,318.35 and 440,514.20

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Solution

The fourth proportional to 789,358.92, 1,089,318.35 and 440,514.20 is: 607,911.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,358.92 : 1,089,318.35 = 440,514.20 : x
  2. Step 2: Convert to fraction form
    789,358.92/1,089,318.35 = 440,514.20/x
  3. Step 3: Cross multiply
    789,358.92x = 1,089,318.35 × 440,514.20
  4. Step 4: Simplify right side
    789,358.92x = 479,860,197,953.79
  5. Step 5: Solve for x
    x = 479,860,197,953.79/789,358.92
  6. Step 6: Final answer
    x = 607,911.29

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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.