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Finding the Fourth Proportional to 1,142,834.75, 1,714,537.67 and 806,531.88

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Solution

The fourth proportional to 1,142,834.75, 1,714,537.67 and 806,531.88 is: 1,209,999.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,834.75 : 1,714,537.67 = 806,531.88 : x
  2. Step 2: Convert to fraction form
    1,142,834.75/1,714,537.67 = 806,531.88/x
  3. Step 3: Cross multiply
    1,142,834.75x = 1,714,537.67 × 806,531.88
  4. Step 4: Simplify right side
    1,142,834.75x = 1,382,829,286,283.26
  5. Step 5: Solve for x
    x = 1,382,829,286,283.26/1,142,834.75
  6. Step 6: Final answer
    x = 1,209,999.34

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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.