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Finding the Fourth Proportional to 808,889.90, 1,213,334.85 and 798,392.30

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Solution

The fourth proportional to 808,889.90, 1,213,334.85 and 798,392.30 is: 1,197,588.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,889.90 : 1,213,334.85 = 798,392.30 : x
  2. Step 2: Convert to fraction form
    808,889.90/1,213,334.85 = 798,392.30/x
  3. Step 3: Cross multiply
    808,889.90x = 1,213,334.85 × 798,392.30
  4. Step 4: Simplify right side
    808,889.90x = 968,717,201,561.66
  5. Step 5: Solve for x
    x = 968,717,201,561.66/808,889.90
  6. Step 6: Final answer
    x = 1,197,588.45

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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.