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Finding the Fourth Proportional to 635,289.75, 876,700.53 and 377,218.22

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Solution

The fourth proportional to 635,289.75, 876,700.53 and 377,218.22 is: 520,561.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,289.75 : 876,700.53 = 377,218.22 : x
  2. Step 2: Convert to fraction form
    635,289.75/876,700.53 = 377,218.22/x
  3. Step 3: Cross multiply
    635,289.75x = 876,700.53 × 377,218.22
  4. Step 4: Simplify right side
    635,289.75x = 330,707,409,016.15
  5. Step 5: Solve for x
    x = 330,707,409,016.15/635,289.75
  6. Step 6: Final answer
    x = 520,561.54

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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.