Home / 1,420,853.54-1,960,806.10-776,313.66

Finding the Fourth Proportional to 1,420,853.54, 1,960,806.10 and 776,313.66

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Solution

The fourth proportional to 1,420,853.54, 1,960,806.10 and 776,313.66 is: 1,071,328.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,853.54 : 1,960,806.10 = 776,313.66 : x
  2. Step 2: Convert to fraction form
    1,420,853.54/1,960,806.10 = 776,313.66/x
  3. Step 3: Cross multiply
    1,420,853.54x = 1,960,806.10 × 776,313.66
  4. Step 4: Simplify right side
    1,420,853.54x = 1,522,200,560,041.33
  5. Step 5: Solve for x
    x = 1,522,200,560,041.33/1,420,853.54
  6. Step 6: Final answer
    x = 1,071,328.27

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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.