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Finding the Fourth Proportional to 885,995.80, 1,328,864.10 and 254,843.80

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Solution

The fourth proportional to 885,995.80, 1,328,864.10 and 254,843.80 is: 382,228.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,995.80 : 1,328,864.10 = 254,843.80 : x
  2. Step 2: Convert to fraction form
    885,995.80/1,328,864.10 = 254,843.80/x
  3. Step 3: Cross multiply
    885,995.80x = 1,328,864.10 × 254,843.80
  4. Step 4: Simplify right side
    885,995.80x = 338,652,776,927.58
  5. Step 5: Solve for x
    x = 338,652,776,927.58/885,995.80
  6. Step 6: Final answer
    x = 382,228.42

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1.5x scale

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.