Home / 679,516.77-1,019,281.34-206,202.15

Finding the Fourth Proportional to 679,516.77, 1,019,281.34 and 206,202.15

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Solution

The fourth proportional to 679,516.77, 1,019,281.34 and 206,202.15 is: 309,305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,516.77 : 1,019,281.34 = 206,202.15 : x
  2. Step 2: Convert to fraction form
    679,516.77/1,019,281.34 = 206,202.15/x
  3. Step 3: Cross multiply
    679,516.77x = 1,019,281.34 × 206,202.15
  4. Step 4: Simplify right side
    679,516.77x = 210,178,003,762.88
  5. Step 5: Solve for x
    x = 210,178,003,762.88/679,516.77
  6. Step 6: Final answer
    x = 309,305.10

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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.