Home / 1,550,640.78-2,139,570.65-905,936.46

Finding the Fourth Proportional to 1,550,640.78, 2,139,570.65 and 905,936.46

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Solution

The fourth proportional to 1,550,640.78, 2,139,570.65 and 905,936.46 is: 1,250,009.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550,640.78 : 2,139,570.65 = 905,936.46 : x
  2. Step 2: Convert to fraction form
    1,550,640.78/2,139,570.65 = 905,936.46/x
  3. Step 3: Cross multiply
    1,550,640.78x = 2,139,570.65 × 905,936.46
  4. Step 4: Simplify right side
    1,550,640.78x = 1,938,315,056,051.22
  5. Step 5: Solve for x
    x = 1,938,315,056,051.22/1,550,640.78
  6. Step 6: Final answer
    x = 1,250,009.08

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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.