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Finding the Fourth Proportional to 816,687.60, 1,222,698.60 and 732,706.80

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Solution

The fourth proportional to 816,687.60, 1,222,698.60 and 732,706.80 is: 1,096,967.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,687.60 : 1,222,698.60 = 732,706.80 : x
  2. Step 2: Convert to fraction form
    816,687.60/1,222,698.60 = 732,706.80/x
  3. Step 3: Cross multiply
    816,687.60x = 1,222,698.60 × 732,706.80
  4. Step 4: Simplify right side
    816,687.60x = 895,879,578,570.48
  5. Step 5: Solve for x
    x = 895,879,578,570.48/816,687.60
  6. Step 6: Final answer
    x = 1,096,967.28

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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.