Home / 1,640,155.67-2,263,415.79-915,003.39

Finding the Fourth Proportional to 1,640,155.67, 2,263,415.79 and 915,003.39

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Solution

The fourth proportional to 1,640,155.67, 2,263,415.79 and 915,003.39 is: 1,262,705.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,155.67 : 2,263,415.79 = 915,003.39 : x
  2. Step 2: Convert to fraction form
    1,640,155.67/2,263,415.79 = 915,003.39/x
  3. Step 3: Cross multiply
    1,640,155.67x = 2,263,415.79 × 915,003.39
  4. Step 4: Simplify right side
    1,640,155.67x = 2,071,033,120,829.53
  5. Step 5: Solve for x
    x = 2,071,033,120,829.53/1,640,155.67
  6. Step 6: Final answer
    x = 1,262,705.22

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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.