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Finding the Fourth Proportional to 549,009.30, 822,131.55 and 361,002.90

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Solution

The fourth proportional to 549,009.30, 822,131.55 and 361,002.90 is: 540,595.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,009.30 : 822,131.55 = 361,002.90 : x
  2. Step 2: Convert to fraction form
    549,009.30/822,131.55 = 361,002.90/x
  3. Step 3: Cross multiply
    549,009.30x = 822,131.55 × 361,002.90
  4. Step 4: Simplify right side
    549,009.30x = 296,791,873,731.50
  5. Step 5: Solve for x
    x = 296,791,873,731.50/549,009.30
  6. Step 6: Final answer
    x = 540,595.35

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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.