Home / 1,076,419.82-1,486,970.24-1,019,732.78

Finding the Fourth Proportional to 1,076,419.82, 1,486,970.24 and 1,019,732.78

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Solution

The fourth proportional to 1,076,419.82, 1,486,970.24 and 1,019,732.78 is: 1,408,662.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,419.82 : 1,486,970.24 = 1,019,732.78 : x
  2. Step 2: Convert to fraction form
    1,076,419.82/1,486,970.24 = 1,019,732.78/x
  3. Step 3: Cross multiply
    1,076,419.82x = 1,486,970.24 × 1,019,732.78
  4. Step 4: Simplify right side
    1,076,419.82x = 1,516,312,296,612.47
  5. Step 5: Solve for x
    x = 1,516,312,296,612.47/1,076,419.82
  6. Step 6: Final answer
    x = 1,408,662.56

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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.