Home / 1,288,087.76-1,777,567.56-804,933.68

Finding the Fourth Proportional to 1,288,087.76, 1,777,567.56 and 804,933.68

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Solution

The fourth proportional to 1,288,087.76, 1,777,567.56 and 804,933.68 is: 1,110,812.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,087.76 : 1,777,567.56 = 804,933.68 : x
  2. Step 2: Convert to fraction form
    1,288,087.76/1,777,567.56 = 804,933.68/x
  3. Step 3: Cross multiply
    1,288,087.76x = 1,777,567.56 × 804,933.68
  4. Step 4: Simplify right side
    1,288,087.76x = 1,430,823,997,519.42
  5. Step 5: Solve for x
    x = 1,430,823,997,519.42/1,288,087.76
  6. Step 6: Final answer
    x = 1,110,812.51

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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.