Home / 726,969.78-1,090,630.80-228,333.78

Finding the Fourth Proportional to 726,969.78, 1,090,630.80 and 228,333.78

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Solution

The fourth proportional to 726,969.78, 1,090,630.80 and 228,333.78 is: 342,555.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,969.78 : 1,090,630.80 = 228,333.78 : x
  2. Step 2: Convert to fraction form
    726,969.78/1,090,630.80 = 228,333.78/x
  3. Step 3: Cross multiply
    726,969.78x = 1,090,630.80 × 228,333.78
  4. Step 4: Simplify right side
    726,969.78x = 249,027,853,148.42
  5. Step 5: Solve for x
    x = 249,027,853,148.42/726,969.78
  6. Step 6: Final answer
    x = 342,555.99

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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.