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Finding the Fourth Proportional to 637,403.44, 879,418.12 and 361,715.60

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Solution

The fourth proportional to 637,403.44, 879,418.12 and 361,715.60 is: 499,054.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,403.44 : 879,418.12 = 361,715.60 : x
  2. Step 2: Convert to fraction form
    637,403.44/879,418.12 = 361,715.60/x
  3. Step 3: Cross multiply
    637,403.44x = 879,418.12 × 361,715.60
  4. Step 4: Simplify right side
    637,403.44x = 318,099,252,926.67
  5. Step 5: Solve for x
    x = 318,099,252,926.67/637,403.44
  6. Step 6: Final answer
    x = 499,054.81

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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.