Home / 1,424,221.41-1,965,425.40-779,642.04

Finding the Fourth Proportional to 1,424,221.41, 1,965,425.40 and 779,642.04

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Solution

The fourth proportional to 1,424,221.41, 1,965,425.40 and 779,642.04 is: 1,075,905.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,221.41 : 1,965,425.40 = 779,642.04 : x
  2. Step 2: Convert to fraction form
    1,424,221.41/1,965,425.40 = 779,642.04/x
  3. Step 3: Cross multiply
    1,424,221.41x = 1,965,425.40 × 779,642.04
  4. Step 4: Simplify right side
    1,424,221.41x = 1,532,328,268,323.82
  5. Step 5: Solve for x
    x = 1,532,328,268,323.82/1,424,221.41
  6. Step 6: Final answer
    x = 1,075,905.94

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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.