Home / 1,119,945.78-1,679,294.79-664,721.82

Finding the Fourth Proportional to 1,119,945.78, 1,679,294.79 and 664,721.82

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Solution

The fourth proportional to 1,119,945.78, 1,679,294.79 and 664,721.82 is: 996,712.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,945.78 : 1,679,294.79 = 664,721.82 : x
  2. Step 2: Convert to fraction form
    1,119,945.78/1,679,294.79 = 664,721.82/x
  3. Step 3: Cross multiply
    1,119,945.78x = 1,679,294.79 × 664,721.82
  4. Step 4: Simplify right side
    1,119,945.78x = 1,116,263,889,125.32
  5. Step 5: Solve for x
    x = 1,116,263,889,125.32/1,119,945.78
  6. Step 6: Final answer
    x = 996,712.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.