Home / 500,811.63-691,094.34-285,909.72

Finding the Fourth Proportional to 500,811.63, 691,094.34 and 285,909.72

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Solution

The fourth proportional to 500,811.63, 691,094.34 and 285,909.72 is: 394,540.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,811.63 : 691,094.34 = 285,909.72 : x
  2. Step 2: Convert to fraction form
    500,811.63/691,094.34 = 285,909.72/x
  3. Step 3: Cross multiply
    500,811.63x = 691,094.34 × 285,909.72
  4. Step 4: Simplify right side
    500,811.63x = 197,590,589,242.99
  5. Step 5: Solve for x
    x = 197,590,589,242.99/500,811.63
  6. Step 6: Final answer
    x = 394,540.74

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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.