Home / 1,287,777.49-1,777,139.80-804,622.82

Finding the Fourth Proportional to 1,287,777.49, 1,777,139.80 and 804,622.82

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Solution

The fourth proportional to 1,287,777.49, 1,777,139.80 and 804,622.82 is: 1,110,383.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,777.49 : 1,777,139.80 = 804,622.82 : x
  2. Step 2: Convert to fraction form
    1,287,777.49/1,777,139.80 = 804,622.82/x
  3. Step 3: Cross multiply
    1,287,777.49x = 1,777,139.80 × 804,622.82
  4. Step 4: Simplify right side
    1,287,777.49x = 1,429,927,226,512.98
  5. Step 5: Solve for x
    x = 1,429,927,226,512.98/1,287,777.49
  6. Step 6: Final answer
    x = 1,110,383.77

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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.