Home / 3,105,477.40-4,655,445.90-1,211,778.40

Finding the Fourth Proportional to 3,105,477.40, 4,655,445.90 and 1,211,778.40

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Solution

The fourth proportional to 3,105,477.40, 4,655,445.90 and 1,211,778.40 is: 1,816,586.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105,477.40 : 4,655,445.90 = 1,211,778.40 : x
  2. Step 2: Convert to fraction form
    3,105,477.40/4,655,445.90 = 1,211,778.40/x
  3. Step 3: Cross multiply
    3,105,477.40x = 4,655,445.90 × 1,211,778.40
  4. Step 4: Simplify right side
    3,105,477.40x = 5,641,368,783,988.56
  5. Step 5: Solve for x
    x = 5,641,368,783,988.56/3,105,477.40
  6. Step 6: Final answer
    x = 1,816,586.65

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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.