Home / 806,839.20-1,212,883.20-571,809.60

Finding the Fourth Proportional to 806,839.20, 1,212,883.20 and 571,809.60

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Solution

The fourth proportional to 806,839.20, 1,212,883.20 and 571,809.60 is: 859,574.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,839.20 : 1,212,883.20 = 571,809.60 : x
  2. Step 2: Convert to fraction form
    806,839.20/1,212,883.20 = 571,809.60/x
  3. Step 3: Cross multiply
    806,839.20x = 1,212,883.20 × 571,809.60
  4. Step 4: Simplify right side
    806,839.20x = 693,538,257,438.72
  5. Step 5: Solve for x
    x = 693,538,257,438.72/806,839.20
  6. Step 6: Final answer
    x = 859,574.32

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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.