Home / 449,186.20-619,373.46-306,030.04

Finding the Fourth Proportional to 449,186.20, 619,373.46 and 306,030.04

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Solution

The fourth proportional to 449,186.20, 619,373.46 and 306,030.04 is: 421,978.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,186.20 : 619,373.46 = 306,030.04 : x
  2. Step 2: Convert to fraction form
    449,186.20/619,373.46 = 306,030.04/x
  3. Step 3: Cross multiply
    449,186.20x = 619,373.46 × 306,030.04
  4. Step 4: Simplify right side
    449,186.20x = 189,546,884,738.74
  5. Step 5: Solve for x
    x = 189,546,884,738.74/449,186.20
  6. Step 6: Final answer
    x = 421,978.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.