Home / 819,394.92-1,228,250.52-313,837.20

Finding the Fourth Proportional to 819,394.92, 1,228,250.52 and 313,837.20

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Solution

The fourth proportional to 819,394.92, 1,228,250.52 and 313,837.20 is: 470,433.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,394.92 : 1,228,250.52 = 313,837.20 : x
  2. Step 2: Convert to fraction form
    819,394.92/1,228,250.52 = 313,837.20/x
  3. Step 3: Cross multiply
    819,394.92x = 1,228,250.52 × 313,837.20
  4. Step 4: Simplify right side
    819,394.92x = 385,470,704,095.34
  5. Step 5: Solve for x
    x = 385,470,704,095.34/819,394.92
  6. Step 6: Final answer
    x = 470,433.36

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1.5x scale

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.