Home / 819,263.54-1,228,450.62-369,458.12

Finding the Fourth Proportional to 819,263.54, 1,228,450.62 and 369,458.12

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Solution

The fourth proportional to 819,263.54, 1,228,450.62 and 369,458.12 is: 553,986.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,263.54 : 1,228,450.62 = 369,458.12 : x
  2. Step 2: Convert to fraction form
    819,263.54/1,228,450.62 = 369,458.12/x
  3. Step 3: Cross multiply
    819,263.54x = 1,228,450.62 × 369,458.12
  4. Step 4: Simplify right side
    819,263.54x = 453,861,056,578.03
  5. Step 5: Solve for x
    x = 453,861,056,578.03/819,263.54
  6. Step 6: Final answer
    x = 553,986.64

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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.