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Finding the Fourth Proportional to 891,198, 1,229,853.84 and 483,299.72

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Solution

The fourth proportional to 891,198, 1,229,853.84 and 483,299.72 is: 666,953.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,198 : 1,229,853.84 = 483,299.72 : x
  2. Step 2: Convert to fraction form
    891,198/1,229,853.84 = 483,299.72/x
  3. Step 3: Cross multiply
    891,198x = 1,229,853.84 × 483,299.72
  4. Step 4: Simplify right side
    891,198x = 594,388,010,363.66
  5. Step 5: Solve for x
    x = 594,388,010,363.66/891,198
  6. Step 6: Final answer
    x = 666,953.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.