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Finding the Fourth Proportional to 438,452.69, 605,115.77 and 364,734.90

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Solution

The fourth proportional to 438,452.69, 605,115.77 and 364,734.90 is: 503,376.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,452.69 : 605,115.77 = 364,734.90 : x
  2. Step 2: Convert to fraction form
    438,452.69/605,115.77 = 364,734.90/x
  3. Step 3: Cross multiply
    438,452.69x = 605,115.77 × 364,734.90
  4. Step 4: Simplify right side
    438,452.69x = 220,706,838,035.70
  5. Step 5: Solve for x
    x = 220,706,838,035.70/438,452.69
  6. Step 6: Final answer
    x = 503,376.64

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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.