Home / 4,268,808.81-6,403,661.78-1,390,399.77

Finding the Fourth Proportional to 4,268,808.81, 6,403,661.78 and 1,390,399.77

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Solution

The fourth proportional to 4,268,808.81, 6,403,661.78 and 1,390,399.77 is: 2,085,745.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,268,808.81 : 6,403,661.78 = 1,390,399.77 : x
  2. Step 2: Convert to fraction form
    4,268,808.81/6,403,661.78 = 1,390,399.77/x
  3. Step 3: Cross multiply
    4,268,808.81x = 6,403,661.78 × 1,390,399.77
  4. Step 4: Simplify right side
    4,268,808.81x = 8,903,649,859,117.79
  5. Step 5: Solve for x
    x = 8,903,649,859,117.79/4,268,808.81
  6. Step 6: Final answer
    x = 2,085,745.76

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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.