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Finding the Fourth Proportional to 1,321,746.75, 1,824,100.71 and 748,791.63

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Solution

The fourth proportional to 1,321,746.75, 1,824,100.71 and 748,791.63 is: 1,033,383.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,746.75 : 1,824,100.71 = 748,791.63 : x
  2. Step 2: Convert to fraction form
    1,321,746.75/1,824,100.71 = 748,791.63/x
  3. Step 3: Cross multiply
    1,321,746.75x = 1,824,100.71 × 748,791.63
  4. Step 4: Simplify right side
    1,321,746.75x = 1,365,871,343,925.06
  5. Step 5: Solve for x
    x = 1,365,871,343,925.06/1,321,746.75
  6. Step 6: Final answer
    x = 1,033,383.55

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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.