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Finding the Fourth Proportional to 1,327,935.90, 1,989,103.05 and 901,733.34

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Solution

The fourth proportional to 1,327,935.90, 1,989,103.05 and 901,733.34 is: 1,350,698.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,935.90 : 1,989,103.05 = 901,733.34 : x
  2. Step 2: Convert to fraction form
    1,327,935.90/1,989,103.05 = 901,733.34/x
  3. Step 3: Cross multiply
    1,327,935.90x = 1,989,103.05 × 901,733.34
  4. Step 4: Simplify right side
    1,327,935.90x = 1,793,640,536,880.69
  5. Step 5: Solve for x
    x = 1,793,640,536,880.69/1,327,935.90
  6. Step 6: Final answer
    x = 1,350,698.13

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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.