Home / 1,424,015.78-1,965,160.23-779,422.13

Finding the Fourth Proportional to 1,424,015.78, 1,965,160.23 and 779,422.13

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Solution

The fourth proportional to 1,424,015.78, 1,965,160.23 and 779,422.13 is: 1,075,612.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,015.78 : 1,965,160.23 = 779,422.13 : x
  2. Step 2: Convert to fraction form
    1,424,015.78/1,965,160.23 = 779,422.13/x
  3. Step 3: Cross multiply
    1,424,015.78x = 1,965,160.23 × 779,422.13
  4. Step 4: Simplify right side
    1,424,015.78x = 1,531,689,372,257.89
  5. Step 5: Solve for x
    x = 1,531,689,372,257.89/1,424,015.78
  6. Step 6: Final answer
    x = 1,075,612.64

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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.