Home / 1,422,159.72-1,962,580.59-777,580.36

Finding the Fourth Proportional to 1,422,159.72, 1,962,580.59 and 777,580.36

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Solution

The fourth proportional to 1,422,159.72, 1,962,580.59 and 777,580.36 is: 1,073,060.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,159.72 : 1,962,580.59 = 777,580.36 : x
  2. Step 2: Convert to fraction form
    1,422,159.72/1,962,580.59 = 777,580.36/x
  3. Step 3: Cross multiply
    1,422,159.72x = 1,962,580.59 × 777,580.36
  4. Step 4: Simplify right side
    1,422,159.72x = 1,526,064,121,701.21
  5. Step 5: Solve for x
    x = 1,526,064,121,701.21/1,422,159.72
  6. Step 6: Final answer
    x = 1,073,060.99

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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.