Home / 605,112.20-907,668.30-521,131.40

Finding the Fourth Proportional to 605,112.20, 907,668.30 and 521,131.40

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Solution

The fourth proportional to 605,112.20, 907,668.30 and 521,131.40 is: 781,697.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,112.20 : 907,668.30 = 521,131.40 : x
  2. Step 2: Convert to fraction form
    605,112.20/907,668.30 = 521,131.40/x
  3. Step 3: Cross multiply
    605,112.20x = 907,668.30 × 521,131.40
  4. Step 4: Simplify right side
    605,112.20x = 473,014,451,914.62
  5. Step 5: Solve for x
    x = 473,014,451,914.62/605,112.20
  6. Step 6: Final answer
    x = 781,697.10

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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.