Home / 1,129,562.69-1,558,789.31-646,135.85

Finding the Fourth Proportional to 1,129,562.69, 1,558,789.31 and 646,135.85

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Solution

The fourth proportional to 1,129,562.69, 1,558,789.31 and 646,135.85 is: 891,663.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,562.69 : 1,558,789.31 = 646,135.85 : x
  2. Step 2: Convert to fraction form
    1,129,562.69/1,558,789.31 = 646,135.85/x
  3. Step 3: Cross multiply
    1,129,562.69x = 1,558,789.31 × 646,135.85
  4. Step 4: Simplify right side
    1,129,562.69x = 1,007,189,661,300.08
  5. Step 5: Solve for x
    x = 1,007,189,661,300.08/1,129,562.69
  6. Step 6: Final answer
    x = 891,663.36

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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.