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Finding the Fourth Proportional to 580,498.80, 869,917.48 and 330,664.56

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Solution

The fourth proportional to 580,498.80, 869,917.48 and 330,664.56 is: 495,523.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,498.80 : 869,917.48 = 330,664.56 : x
  2. Step 2: Convert to fraction form
    580,498.80/869,917.48 = 330,664.56/x
  3. Step 3: Cross multiply
    580,498.80x = 869,917.48 × 330,664.56
  4. Step 4: Simplify right side
    580,498.80x = 287,650,880,760.51
  5. Step 5: Solve for x
    x = 287,650,880,760.51/580,498.80
  6. Step 6: Final answer
    x = 495,523.64

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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.