Home / 1,086,436.80-1,629,647.10-328,276.80

Finding the Fourth Proportional to 1,086,436.80, 1,629,647.10 and 328,276.80

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Solution

The fourth proportional to 1,086,436.80, 1,629,647.10 and 328,276.80 is: 492,412.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,436.80 : 1,629,647.10 = 328,276.80 : x
  2. Step 2: Convert to fraction form
    1,086,436.80/1,629,647.10 = 328,276.80/x
  3. Step 3: Cross multiply
    1,086,436.80x = 1,629,647.10 × 328,276.80
  4. Step 4: Simplify right side
    1,086,436.80x = 534,975,335,117.28
  5. Step 5: Solve for x
    x = 534,975,335,117.28/1,086,436.80
  6. Step 6: Final answer
    x = 492,412.75

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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.