Home / 413,741.40-620,612.10-272,023.80

Finding the Fourth Proportional to 413,741.40, 620,612.10 and 272,023.80

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Solution

The fourth proportional to 413,741.40, 620,612.10 and 272,023.80 is: 408,035.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,741.40 : 620,612.10 = 272,023.80 : x
  2. Step 2: Convert to fraction form
    413,741.40/620,612.10 = 272,023.80/x
  3. Step 3: Cross multiply
    413,741.40x = 620,612.10 × 272,023.80
  4. Step 4: Simplify right side
    413,741.40x = 168,821,261,767.98
  5. Step 5: Solve for x
    x = 168,821,261,767.98/413,741.40
  6. Step 6: Final answer
    x = 408,035.70

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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.