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Finding the Fourth Proportional to 668,180.13, 1,001,794.04 and 313,000.39

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Solution

The fourth proportional to 668,180.13, 1,001,794.04 and 313,000.39 is: 469,277.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,180.13 : 1,001,794.04 = 313,000.39 : x
  2. Step 2: Convert to fraction form
    668,180.13/1,001,794.04 = 313,000.39/x
  3. Step 3: Cross multiply
    668,180.13x = 1,001,794.04 × 313,000.39
  4. Step 4: Simplify right side
    668,180.13x = 313,561,925,219.68
  5. Step 5: Solve for x
    x = 313,561,925,219.68/668,180.13
  6. Step 6: Final answer
    x = 469,277.54

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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.