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Finding the Fourth Proportional to 575,478, 863,566.92 and 243,054

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Solution

The fourth proportional to 575,478, 863,566.92 and 243,054 is: 364,728.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,478 : 863,566.92 = 243,054 : x
  2. Step 2: Convert to fraction form
    575,478/863,566.92 = 243,054/x
  3. Step 3: Cross multiply
    575,478x = 863,566.92 × 243,054
  4. Step 4: Simplify right side
    575,478x = 209,893,394,173.68
  5. Step 5: Solve for x
    x = 209,893,394,173.68/575,478
  6. Step 6: Final answer
    x = 364,728.79

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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.