Home / 1,420,664.68-1,960,505.22-776,085.16

Finding the Fourth Proportional to 1,420,664.68, 1,960,505.22 and 776,085.16

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Solution

The fourth proportional to 1,420,664.68, 1,960,505.22 and 776,085.16 is: 1,070,990.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,664.68 : 1,960,505.22 = 776,085.16 : x
  2. Step 2: Convert to fraction form
    1,420,664.68/1,960,505.22 = 776,085.16/x
  3. Step 3: Cross multiply
    1,420,664.68x = 1,960,505.22 × 776,085.16
  4. Step 4: Simplify right side
    1,420,664.68x = 1,521,519,007,344.54
  5. Step 5: Solve for x
    x = 1,521,519,007,344.54/1,420,664.68
  6. Step 6: Final answer
    x = 1,070,990.94

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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.