Home / 726,875.20-1,090,312.80-221,435.20

Finding the Fourth Proportional to 726,875.20, 1,090,312.80 and 221,435.20

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Solution

The fourth proportional to 726,875.20, 1,090,312.80 and 221,435.20 is: 332,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,875.20 : 1,090,312.80 = 221,435.20 : x
  2. Step 2: Convert to fraction form
    726,875.20/1,090,312.80 = 221,435.20/x
  3. Step 3: Cross multiply
    726,875.20x = 1,090,312.80 × 221,435.20
  4. Step 4: Simplify right side
    726,875.20x = 241,433,632,930.56
  5. Step 5: Solve for x
    x = 241,433,632,930.56/726,875.20
  6. Step 6: Final answer
    x = 332,152.80

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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.