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Finding the Fourth Proportional to 520,452.96, 718,816.32 and 350,391.84

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Solution

The fourth proportional to 520,452.96, 718,816.32 and 350,391.84 is: 483,938.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,452.96 : 718,816.32 = 350,391.84 : x
  2. Step 2: Convert to fraction form
    520,452.96/718,816.32 = 350,391.84/x
  3. Step 3: Cross multiply
    520,452.96x = 718,816.32 × 350,391.84
  4. Step 4: Simplify right side
    520,452.96x = 251,867,372,986.83
  5. Step 5: Solve for x
    x = 251,867,372,986.83/520,452.96
  6. Step 6: Final answer
    x = 483,938.78

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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.