Home / 1,076,420.82-1,486,971.62-1,019,733.78

Finding the Fourth Proportional to 1,076,420.82, 1,486,971.62 and 1,019,733.78

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Solution

The fourth proportional to 1,076,420.82, 1,486,971.62 and 1,019,733.78 is: 1,408,663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,420.82 : 1,486,971.62 = 1,019,733.78 : x
  2. Step 2: Convert to fraction form
    1,076,420.82/1,486,971.62 = 1,019,733.78/x
  3. Step 3: Cross multiply
    1,076,420.82x = 1,486,971.62 × 1,019,733.78
  4. Step 4: Simplify right side
    1,076,420.82x = 1,516,315,190,815.32
  5. Step 5: Solve for x
    x = 1,516,315,190,815.32/1,076,420.82
  6. Step 6: Final answer
    x = 1,408,663.94

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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.