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Finding the Fourth Proportional to 549,245.80, 822,486.30 and 361,239.40

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Solution

The fourth proportional to 549,245.80, 822,486.30 and 361,239.40 is: 540,949.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,245.80 : 822,486.30 = 361,239.40 : x
  2. Step 2: Convert to fraction form
    549,245.80/822,486.30 = 361,239.40/x
  3. Step 3: Cross multiply
    549,245.80x = 822,486.30 × 361,239.40
  4. Step 4: Simplify right side
    549,245.80x = 297,114,457,520.22
  5. Step 5: Solve for x
    x = 297,114,457,520.22/549,245.80
  6. Step 6: Final answer
    x = 540,949.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.