Home / 513,991.03-709,381.85-296,157.98

Finding the Fourth Proportional to 513,991.03, 709,381.85 and 296,157.98

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Solution

The fourth proportional to 513,991.03, 709,381.85 and 296,157.98 is: 408,740.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,991.03 : 709,381.85 = 296,157.98 : x
  2. Step 2: Convert to fraction form
    513,991.03/709,381.85 = 296,157.98/x
  3. Step 3: Cross multiply
    513,991.03x = 709,381.85 × 296,157.98
  4. Step 4: Simplify right side
    513,991.03x = 210,089,092,490.42
  5. Step 5: Solve for x
    x = 210,089,092,490.42/513,991.03
  6. Step 6: Final answer
    x = 408,740.78

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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.