Home / 711,837.10-982,183.28-421,539.85

Finding the Fourth Proportional to 711,837.10, 982,183.28 and 421,539.85

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Solution

The fourth proportional to 711,837.10, 982,183.28 and 421,539.85 is: 581,635.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,837.10 : 982,183.28 = 421,539.85 : x
  2. Step 2: Convert to fraction form
    711,837.10/982,183.28 = 421,539.85/x
  3. Step 3: Cross multiply
    711,837.10x = 982,183.28 × 421,539.85
  4. Step 4: Simplify right side
    711,837.10x = 414,029,392,523.71
  5. Step 5: Solve for x
    x = 414,029,392,523.71/711,837.10
  6. Step 6: Final answer
    x = 581,635.03

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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.