Home / 679,679.31-1,019,453.01-206,368.77

Finding the Fourth Proportional to 679,679.31, 1,019,453.01 and 206,368.77

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Solution

The fourth proportional to 679,679.31, 1,019,453.01 and 206,368.77 is: 309,533.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,679.31 : 1,019,453.01 = 206,368.77 : x
  2. Step 2: Convert to fraction form
    679,679.31/1,019,453.01 = 206,368.77/x
  3. Step 3: Cross multiply
    679,679.31x = 1,019,453.01 × 206,368.77
  4. Step 4: Simplify right side
    679,679.31x = 210,383,263,746.50
  5. Step 5: Solve for x
    x = 210,383,263,746.50/679,679.31
  6. Step 6: Final answer
    x = 309,533.13

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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.