Home / 1,280,886.89-1,921,645.71-902,546.55

Finding the Fourth Proportional to 1,280,886.89, 1,921,645.71 and 902,546.55

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Solution

The fourth proportional to 1,280,886.89, 1,921,645.71 and 902,546.55 is: 1,354,042.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,886.89 : 1,921,645.71 = 902,546.55 : x
  2. Step 2: Convert to fraction form
    1,280,886.89/1,921,645.71 = 902,546.55/x
  3. Step 3: Cross multiply
    1,280,886.89x = 1,921,645.71 × 902,546.55
  4. Step 4: Simplify right side
    1,280,886.89x = 1,734,374,705,882.80
  5. Step 5: Solve for x
    x = 1,734,374,705,882.80/1,280,886.89
  6. Step 6: Final answer
    x = 1,354,042.05

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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.