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Finding the Fourth Proportional to 549,388.75, 758,161.71 and 304,378.69

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Solution

The fourth proportional to 549,388.75, 758,161.71 and 304,378.69 is: 420,045.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,388.75 : 758,161.71 = 304,378.69 : x
  2. Step 2: Convert to fraction form
    549,388.75/758,161.71 = 304,378.69/x
  3. Step 3: Cross multiply
    549,388.75x = 758,161.71 × 304,378.69
  4. Step 4: Simplify right side
    549,388.75x = 230,768,265,063.75
  5. Step 5: Solve for x
    x = 230,768,265,063.75/549,388.75
  6. Step 6: Final answer
    x = 420,045.49

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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.