Home / 1,211,259.80-1,820,826.30-1,038,049.40

Finding the Fourth Proportional to 1,211,259.80, 1,820,826.30 and 1,038,049.40

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Solution

The fourth proportional to 1,211,259.80, 1,820,826.30 and 1,038,049.40 is: 1,560,447.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,259.80 : 1,820,826.30 = 1,038,049.40 : x
  2. Step 2: Convert to fraction form
    1,211,259.80/1,820,826.30 = 1,038,049.40/x
  3. Step 3: Cross multiply
    1,211,259.80x = 1,820,826.30 × 1,038,049.40
  4. Step 4: Simplify right side
    1,211,259.80x = 1,890,107,648,219.22
  5. Step 5: Solve for x
    x = 1,890,107,648,219.22/1,211,259.80
  6. Step 6: Final answer
    x = 1,560,447.77

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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.