Home / 1,326,009-1,989,603.72-694,775.28

Finding the Fourth Proportional to 1,326,009, 1,989,603.72 and 694,775.28

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Solution

The fourth proportional to 1,326,009, 1,989,603.72 and 694,775.28 is: 1,042,472.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,009 : 1,989,603.72 = 694,775.28 : x
  2. Step 2: Convert to fraction form
    1,326,009/1,989,603.72 = 694,775.28/x
  3. Step 3: Cross multiply
    1,326,009x = 1,989,603.72 × 694,775.28
  4. Step 4: Simplify right side
    1,326,009x = 1,382,327,481,652.04
  5. Step 5: Solve for x
    x = 1,382,327,481,652.04/1,326,009
  6. Step 6: Final answer
    x = 1,042,472.17

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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.