Home / 1,426,103.16-1,967,936.94-781,395

Finding the Fourth Proportional to 1,426,103.16, 1,967,936.94 and 781,395

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Solution

The fourth proportional to 1,426,103.16, 1,967,936.94 and 781,395 is: 1,078,278.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,103.16 : 1,967,936.94 = 781,395 : x
  2. Step 2: Convert to fraction form
    1,426,103.16/1,967,936.94 = 781,395/x
  3. Step 3: Cross multiply
    1,426,103.16x = 1,967,936.94 × 781,395
  4. Step 4: Simplify right side
    1,426,103.16x = 1,537,736,085,231.30
  5. Step 5: Solve for x
    x = 1,537,736,085,231.30/1,426,103.16
  6. Step 6: Final answer
    x = 1,078,278.30

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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.