Home / 679,719.94-1,019,513.90-206,409.40

Finding the Fourth Proportional to 679,719.94, 1,019,513.90 and 206,409.40

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Solution

The fourth proportional to 679,719.94, 1,019,513.90 and 206,409.40 is: 309,594.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,719.94 : 1,019,513.90 = 206,409.40 : x
  2. Step 2: Convert to fraction form
    679,719.94/1,019,513.90 = 206,409.40/x
  3. Step 3: Cross multiply
    679,719.94x = 1,019,513.90 × 206,409.40
  4. Step 4: Simplify right side
    679,719.94x = 210,437,252,390.66
  5. Step 5: Solve for x
    x = 210,437,252,390.66/679,719.94
  6. Step 6: Final answer
    x = 309,594.05

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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.