Home / 1,422,015.96-1,962,302.58-777,307.80

Finding the Fourth Proportional to 1,422,015.96, 1,962,302.58 and 777,307.80

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Solution

The fourth proportional to 1,422,015.96, 1,962,302.58 and 777,307.80 is: 1,072,641.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,015.96 : 1,962,302.58 = 777,307.80 : x
  2. Step 2: Convert to fraction form
    1,422,015.96/1,962,302.58 = 777,307.80/x
  3. Step 3: Cross multiply
    1,422,015.96x = 1,962,302.58 × 777,307.80
  4. Step 4: Simplify right side
    1,422,015.96x = 1,525,313,101,394.12
  5. Step 5: Solve for x
    x = 1,525,313,101,394.12/1,422,015.96
  6. Step 6: Final answer
    x = 1,072,641.34

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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.