Home / 679,515.77-1,019,279.84-206,201.15

Finding the Fourth Proportional to 679,515.77, 1,019,279.84 and 206,201.15

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Solution

The fourth proportional to 679,515.77, 1,019,279.84 and 206,201.15 is: 309,303.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,515.77 : 1,019,279.84 = 206,201.15 : x
  2. Step 2: Convert to fraction form
    679,515.77/1,019,279.84 = 206,201.15/x
  3. Step 3: Cross multiply
    679,515.77x = 1,019,279.84 × 206,201.15
  4. Step 4: Simplify right side
    679,515.77x = 210,176,674,148.81
  5. Step 5: Solve for x
    x = 210,176,674,148.81/679,515.77
  6. Step 6: Final answer
    x = 309,303.60

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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.