Home / 726,970.78-1,090,632.30-228,334.78

Finding the Fourth Proportional to 726,970.78, 1,090,632.30 and 228,334.78

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Solution

The fourth proportional to 726,970.78, 1,090,632.30 and 228,334.78 is: 342,557.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,970.78 : 1,090,632.30 = 228,334.78 : x
  2. Step 2: Convert to fraction form
    726,970.78/1,090,632.30 = 228,334.78/x
  3. Step 3: Cross multiply
    726,970.78x = 1,090,632.30 × 228,334.78
  4. Step 4: Simplify right side
    726,970.78x = 249,029,286,281.39
  5. Step 5: Solve for x
    x = 249,029,286,281.39/726,970.78
  6. Step 6: Final answer
    x = 342,557.49

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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.