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Finding the Fourth Proportional to 1,407,821.61, 1,942,768.47 and 795,963.81

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Solution

The fourth proportional to 1,407,821.61, 1,942,768.47 and 795,963.81 is: 1,098,415.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,821.61 : 1,942,768.47 = 795,963.81 : x
  2. Step 2: Convert to fraction form
    1,407,821.61/1,942,768.47 = 795,963.81/x
  3. Step 3: Cross multiply
    1,407,821.61x = 1,942,768.47 × 795,963.81
  4. Step 4: Simplify right side
    1,407,821.61x = 1,546,373,393,329.07
  5. Step 5: Solve for x
    x = 1,546,373,393,329.07/1,407,821.61
  6. Step 6: Final answer
    x = 1,098,415.72

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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.