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Finding the Fourth Proportional to 807,718.80, 1,208,953.80 and 629,259.60

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Solution

The fourth proportional to 807,718.80, 1,208,953.80 and 629,259.60 is: 941,844.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,718.80 : 1,208,953.80 = 629,259.60 : x
  2. Step 2: Convert to fraction form
    807,718.80/1,208,953.80 = 629,259.60/x
  3. Step 3: Cross multiply
    807,718.80x = 1,208,953.80 × 629,259.60
  4. Step 4: Simplify right side
    807,718.80x = 760,745,784,606.48
  5. Step 5: Solve for x
    x = 760,745,784,606.48/807,718.80
  6. Step 6: Final answer
    x = 941,844.84

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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.