Home / 1,223,551.33-1,688,453.87-679,721.31

Finding the Fourth Proportional to 1,223,551.33, 1,688,453.87 and 679,721.31

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Solution

The fourth proportional to 1,223,551.33, 1,688,453.87 and 679,721.31 is: 937,989.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,551.33 : 1,688,453.87 = 679,721.31 : x
  2. Step 2: Convert to fraction form
    1,223,551.33/1,688,453.87 = 679,721.31/x
  3. Step 3: Cross multiply
    1,223,551.33x = 1,688,453.87 × 679,721.31
  4. Step 4: Simplify right side
    1,223,551.33x = 1,147,678,072,992.36
  5. Step 5: Solve for x
    x = 1,147,678,072,992.36/1,223,551.33
  6. Step 6: Final answer
    x = 937,989.32

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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.