Home / 1,422,016.96-1,962,303.96-777,308.80

Finding the Fourth Proportional to 1,422,016.96, 1,962,303.96 and 777,308.80

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Solution

The fourth proportional to 1,422,016.96, 1,962,303.96 and 777,308.80 is: 1,072,642.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,016.96 : 1,962,303.96 = 777,308.80 : x
  2. Step 2: Convert to fraction form
    1,422,016.96/1,962,303.96 = 777,308.80/x
  3. Step 3: Cross multiply
    1,422,016.96x = 1,962,303.96 × 777,308.80
  4. Step 4: Simplify right side
    1,422,016.96x = 1,525,316,136,382.85
  5. Step 5: Solve for x
    x = 1,525,316,136,382.85/1,422,016.96
  6. Step 6: Final answer
    x = 1,072,642.72

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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.