Home / 1,427,819.77-1,970,372.92-815,965.52

Finding the Fourth Proportional to 1,427,819.77, 1,970,372.92 and 815,965.52

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Solution

The fourth proportional to 1,427,819.77, 1,970,372.92 and 815,965.52 is: 1,126,021.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,819.77 : 1,970,372.92 = 815,965.52 : x
  2. Step 2: Convert to fraction form
    1,427,819.77/1,970,372.92 = 815,965.52/x
  3. Step 3: Cross multiply
    1,427,819.77x = 1,970,372.92 × 815,965.52
  4. Step 4: Simplify right side
    1,427,819.77x = 1,607,756,364,261.72
  5. Step 5: Solve for x
    x = 1,607,756,364,261.72/1,427,819.77
  6. Step 6: Final answer
    x = 1,126,021.92

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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.