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Finding the Fourth Proportional to 889,751.80, 1,334,498.10 and 258,599.80

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Solution

The fourth proportional to 889,751.80, 1,334,498.10 and 258,599.80 is: 387,862.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,751.80 : 1,334,498.10 = 258,599.80 : x
  2. Step 2: Convert to fraction form
    889,751.80/1,334,498.10 = 258,599.80/x
  3. Step 3: Cross multiply
    889,751.80x = 1,334,498.10 × 258,599.80
  4. Step 4: Simplify right side
    889,751.80x = 345,100,941,760.38
  5. Step 5: Solve for x
    x = 345,100,941,760.38/889,751.80
  6. Step 6: Final answer
    x = 387,862.03

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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.