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Finding the Fourth Proportional to 394,401.60, 591,094.53 and 343,595.16

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Solution

The fourth proportional to 394,401.60, 591,094.53 and 343,595.16 is: 514,950.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,401.60 : 591,094.53 = 343,595.16 : x
  2. Step 2: Convert to fraction form
    394,401.60/591,094.53 = 343,595.16/x
  3. Step 3: Cross multiply
    394,401.60x = 591,094.53 × 343,595.16
  4. Step 4: Simplify right side
    394,401.60x = 203,097,219,610.48
  5. Step 5: Solve for x
    x = 203,097,219,610.48/394,401.60
  6. Step 6: Final answer
    x = 514,950.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.