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Finding the Fourth Proportional to 1,225,353.03, 1,837,717.40 and 868,872.39

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Solution

The fourth proportional to 1,225,353.03, 1,837,717.40 and 868,872.39 is: 1,303,087.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,353.03 : 1,837,717.40 = 868,872.39 : x
  2. Step 2: Convert to fraction form
    1,225,353.03/1,837,717.40 = 868,872.39/x
  3. Step 3: Cross multiply
    1,225,353.03x = 1,837,717.40 × 868,872.39
  4. Step 4: Simplify right side
    1,225,353.03x = 1,596,741,905,138.22
  5. Step 5: Solve for x
    x = 1,596,741,905,138.22/1,225,353.03
  6. Step 6: Final answer
    x = 1,303,087.25

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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.