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Finding the Fourth Proportional to 613,910.21, 920,167.02 and 373,494.15

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Solution

The fourth proportional to 613,910.21, 920,167.02 and 373,494.15 is: 559,816.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,910.21 : 920,167.02 = 373,494.15 : x
  2. Step 2: Convert to fraction form
    613,910.21/920,167.02 = 373,494.15/x
  3. Step 3: Cross multiply
    613,910.21x = 920,167.02 × 373,494.15
  4. Step 4: Simplify right side
    613,910.21x = 343,676,998,992.93
  5. Step 5: Solve for x
    x = 343,676,998,992.93/613,910.21
  6. Step 6: Final answer
    x = 559,816.39

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1.5x scale

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.