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Finding the Fourth Proportional to 672,353.43, 927,820.60 and 366,423.21

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Solution

The fourth proportional to 672,353.43, 927,820.60 and 366,423.21 is: 505,649.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,353.43 : 927,820.60 = 366,423.21 : x
  2. Step 2: Convert to fraction form
    672,353.43/927,820.60 = 366,423.21/x
  3. Step 3: Cross multiply
    672,353.43x = 927,820.60 × 366,423.21
  4. Step 4: Simplify right side
    672,353.43x = 339,975,002,556.13
  5. Step 5: Solve for x
    x = 339,975,002,556.13/672,353.43
  6. Step 6: Final answer
    x = 505,649.24

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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.