Home / 842,016.64-1,263,523.12-309,911.36

Finding the Fourth Proportional to 842,016.64, 1,263,523.12 and 309,911.36

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Solution

The fourth proportional to 842,016.64, 1,263,523.12 and 309,911.36 is: 465,050.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,016.64 : 1,263,523.12 = 309,911.36 : x
  2. Step 2: Convert to fraction form
    842,016.64/1,263,523.12 = 309,911.36/x
  3. Step 3: Cross multiply
    842,016.64x = 1,263,523.12 × 309,911.36
  4. Step 4: Simplify right side
    842,016.64x = 391,580,168,510.64
  5. Step 5: Solve for x
    x = 391,580,168,510.64/842,016.64
  6. Step 6: Final answer
    x = 465,050.39

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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.