Home / 1,204,636.60-1,806,954.90-921,201.40

Finding the Fourth Proportional to 1,204,636.60, 1,806,954.90 and 921,201.40

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Solution

The fourth proportional to 1,204,636.60, 1,806,954.90 and 921,201.40 is: 1,381,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204,636.60 : 1,806,954.90 = 921,201.40 : x
  2. Step 2: Convert to fraction form
    1,204,636.60/1,806,954.90 = 921,201.40/x
  3. Step 3: Cross multiply
    1,204,636.60x = 1,806,954.90 × 921,201.40
  4. Step 4: Simplify right side
    1,204,636.60x = 1,664,569,383,616.86
  5. Step 5: Solve for x
    x = 1,664,569,383,616.86/1,204,636.60
  6. Step 6: Final answer
    x = 1,381,802.10

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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.