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Finding the Fourth Proportional to 549,509.80, 822,845.16 and 379,257.01

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Solution

The fourth proportional to 549,509.80, 822,845.16 and 379,257.01 is: 567,905.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,509.80 : 822,845.16 = 379,257.01 : x
  2. Step 2: Convert to fraction form
    549,509.80/822,845.16 = 379,257.01/x
  3. Step 3: Cross multiply
    549,509.80x = 822,845.16 × 379,257.01
  4. Step 4: Simplify right side
    549,509.80x = 312,069,794,265.05
  5. Step 5: Solve for x
    x = 312,069,794,265.05/549,509.80
  6. Step 6: Final answer
    x = 567,905.79

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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.