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Finding the Fourth Proportional to 890,595, 1,229,098.86 and 488,264.76

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Solution

The fourth proportional to 890,595, 1,229,098.86 and 488,264.76 is: 673,848.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,595 : 1,229,098.86 = 488,264.76 : x
  2. Step 2: Convert to fraction form
    890,595/1,229,098.86 = 488,264.76/x
  3. Step 3: Cross multiply
    890,595x = 1,229,098.86 × 488,264.76
  4. Step 4: Simplify right side
    890,595x = 600,125,659,894.17
  5. Step 5: Solve for x
    x = 600,125,659,894.17/890,595
  6. Step 6: Final answer
    x = 673,848.00

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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.