Home / 1,420,685.89-1,960,616.52-808,850.77

Finding the Fourth Proportional to 1,420,685.89, 1,960,616.52 and 808,850.77

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Solution

The fourth proportional to 1,420,685.89, 1,960,616.52 and 808,850.77 is: 1,116,253.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,685.89 : 1,960,616.52 = 808,850.77 : x
  2. Step 2: Convert to fraction form
    1,420,685.89/1,960,616.52 = 808,850.77/x
  3. Step 3: Cross multiply
    1,420,685.89x = 1,960,616.52 × 808,850.77
  4. Step 4: Simplify right side
    1,420,685.89x = 1,585,846,176,975.18
  5. Step 5: Solve for x
    x = 1,585,846,176,975.18/1,420,685.89
  6. Step 6: Final answer
    x = 1,116,253.91

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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.