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Finding the Fourth Proportional to 549,483.36, 758,310.56 and 320,003.61

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Solution

The fourth proportional to 549,483.36, 758,310.56 and 320,003.61 is: 441,618.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,483.36 : 758,310.56 = 320,003.61 : x
  2. Step 2: Convert to fraction form
    549,483.36/758,310.56 = 320,003.61/x
  3. Step 3: Cross multiply
    549,483.36x = 758,310.56 × 320,003.61
  4. Step 4: Simplify right side
    549,483.36x = 242,662,119,396.91
  5. Step 5: Solve for x
    x = 242,662,119,396.91/549,483.36
  6. Step 6: Final answer
    x = 441,618.68

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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.