Home / 1,306,629-1,959,943.50-420,165

Finding the Fourth Proportional to 1,306,629, 1,959,943.50 and 420,165

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Solution

The fourth proportional to 1,306,629, 1,959,943.50 and 420,165 is: 630,247.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,629 : 1,959,943.50 = 420,165 : x
  2. Step 2: Convert to fraction form
    1,306,629/1,959,943.50 = 420,165/x
  3. Step 3: Cross multiply
    1,306,629x = 1,959,943.50 × 420,165
  4. Step 4: Simplify right side
    1,306,629x = 823,499,660,677.50
  5. Step 5: Solve for x
    x = 823,499,660,677.50/1,306,629
  6. Step 6: Final answer
    x = 630,247.50

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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.