Home / 1,426,040.87-1,967,937.78-781,462.49

Finding the Fourth Proportional to 1,426,040.87, 1,967,937.78 and 781,462.49

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Solution

The fourth proportional to 1,426,040.87, 1,967,937.78 and 781,462.49 is: 1,078,418.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,040.87 : 1,967,937.78 = 781,462.49 : x
  2. Step 2: Convert to fraction form
    1,426,040.87/1,967,937.78 = 781,462.49/x
  3. Step 3: Cross multiply
    1,426,040.87x = 1,967,937.78 × 781,462.49
  4. Step 4: Simplify right side
    1,426,040.87x = 1,537,869,546,418.94
  5. Step 5: Solve for x
    x = 1,537,869,546,418.94/1,426,040.87
  6. Step 6: Final answer
    x = 1,078,418.99

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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.