Home / 1,422,107.28-1,962,526.66-777,528.22

Finding the Fourth Proportional to 1,422,107.28, 1,962,526.66 and 777,528.22

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Solution

The fourth proportional to 1,422,107.28, 1,962,526.66 and 777,528.22 is: 1,072,999.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,107.28 : 1,962,526.66 = 777,528.22 : x
  2. Step 2: Convert to fraction form
    1,422,107.28/1,962,526.66 = 777,528.22/x
  3. Step 3: Cross multiply
    1,422,107.28x = 1,962,526.66 × 777,528.22
  4. Step 4: Simplify right side
    1,422,107.28x = 1,525,919,860,652.35
  5. Step 5: Solve for x
    x = 1,525,919,860,652.35/1,422,107.28
  6. Step 6: Final answer
    x = 1,072,999.12

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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.