Home / 1,320,039.28-1,821,393.93-803,654.56

Finding the Fourth Proportional to 1,320,039.28, 1,821,393.93 and 803,654.56

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Solution

The fourth proportional to 1,320,039.28, 1,821,393.93 and 803,654.56 is: 1,108,884.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,039.28 : 1,821,393.93 = 803,654.56 : x
  2. Step 2: Convert to fraction form
    1,320,039.28/1,821,393.93 = 803,654.56/x
  3. Step 3: Cross multiply
    1,320,039.28x = 1,821,393.93 × 803,654.56
  4. Step 4: Simplify right side
    1,320,039.28x = 1,463,771,537,400.82
  5. Step 5: Solve for x
    x = 1,463,771,537,400.82/1,320,039.28
  6. Step 6: Final answer
    x = 1,108,884.83

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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.