Home / 1,420,903.80-1,960,824.30-776,310.12

Finding the Fourth Proportional to 1,420,903.80, 1,960,824.30 and 776,310.12

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Solution

The fourth proportional to 1,420,903.80, 1,960,824.30 and 776,310.12 is: 1,071,295.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,903.80 : 1,960,824.30 = 776,310.12 : x
  2. Step 2: Convert to fraction form
    1,420,903.80/1,960,824.30 = 776,310.12/x
  3. Step 3: Cross multiply
    1,420,903.80x = 1,960,824.30 × 776,310.12
  4. Step 4: Simplify right side
    1,420,903.80x = 1,522,207,747,631.92
  5. Step 5: Solve for x
    x = 1,522,207,747,631.92/1,420,903.80
  6. Step 6: Final answer
    x = 1,071,295.43

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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.