Home / 1,418,872.94-2,129,056.76-820,254.51

Finding the Fourth Proportional to 1,418,872.94, 2,129,056.76 and 820,254.51

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Solution

The fourth proportional to 1,418,872.94, 2,129,056.76 and 820,254.51 is: 1,230,813.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,872.94 : 2,129,056.76 = 820,254.51 : x
  2. Step 2: Convert to fraction form
    1,418,872.94/2,129,056.76 = 820,254.51/x
  3. Step 3: Cross multiply
    1,418,872.94x = 2,129,056.76 × 820,254.51
  4. Step 4: Simplify right side
    1,418,872.94x = 1,746,368,405,334.72
  5. Step 5: Solve for x
    x = 1,746,368,405,334.72/1,418,872.94
  6. Step 6: Final answer
    x = 1,230,813.81

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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.