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Finding the Fourth Proportional to 549,144.39, 757,909.93 and 376,920.87

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Solution

The fourth proportional to 549,144.39, 757,909.93 and 376,920.87 is: 520,213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,144.39 : 757,909.93 = 376,920.87 : x
  2. Step 2: Convert to fraction form
    549,144.39/757,909.93 = 376,920.87/x
  3. Step 3: Cross multiply
    549,144.39x = 757,909.93 × 376,920.87
  4. Step 4: Simplify right side
    549,144.39x = 285,672,070,197.24
  5. Step 5: Solve for x
    x = 285,672,070,197.24/549,144.39
  6. Step 6: Final answer
    x = 520,213.04

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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.