Home / 1,204,639.10-1,806,958.65-921,203.90

Finding the Fourth Proportional to 1,204,639.10, 1,806,958.65 and 921,203.90

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Solution

The fourth proportional to 1,204,639.10, 1,806,958.65 and 921,203.90 is: 1,381,805.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204,639.10 : 1,806,958.65 = 921,203.90 : x
  2. Step 2: Convert to fraction form
    1,204,639.10/1,806,958.65 = 921,203.90/x
  3. Step 3: Cross multiply
    1,204,639.10x = 1,806,958.65 × 921,203.90
  4. Step 4: Simplify right side
    1,204,639.10x = 1,664,577,355,518.74
  5. Step 5: Solve for x
    x = 1,664,577,355,518.74/1,204,639.10
  6. Step 6: Final answer
    x = 1,381,805.85

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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.