Home / 938,969.51-1,407,980.66-668,943.36

Finding the Fourth Proportional to 938,969.51, 1,407,980.66 and 668,943.36

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Solution

The fourth proportional to 938,969.51, 1,407,980.66 and 668,943.36 is: 1,003,077.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,969.51 : 1,407,980.66 = 668,943.36 : x
  2. Step 2: Convert to fraction form
    938,969.51/1,407,980.66 = 668,943.36/x
  3. Step 3: Cross multiply
    938,969.51x = 1,407,980.66 × 668,943.36
  4. Step 4: Simplify right side
    938,969.51x = 941,859,310,170.70
  5. Step 5: Solve for x
    x = 941,859,310,170.70/938,969.51
  6. Step 6: Final answer
    x = 1,003,077.63

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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.