Home / 727,981.02-1,091,232.33-278,586.78

Finding the Fourth Proportional to 727,981.02, 1,091,232.33 and 278,586.78

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Solution

The fourth proportional to 727,981.02, 1,091,232.33 and 278,586.78 is: 417,597.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,981.02 : 1,091,232.33 = 278,586.78 : x
  2. Step 2: Convert to fraction form
    727,981.02/1,091,232.33 = 278,586.78/x
  3. Step 3: Cross multiply
    727,981.02x = 1,091,232.33 × 278,586.78
  4. Step 4: Simplify right side
    727,981.02x = 304,002,901,046.60
  5. Step 5: Solve for x
    x = 304,002,901,046.60/727,981.02
  6. Step 6: Final answer
    x = 417,597.29

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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.