Home / 649,932.92-896,605.18-420,564.34

Finding the Fourth Proportional to 649,932.92, 896,605.18 and 420,564.34

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Solution

The fourth proportional to 649,932.92, 896,605.18 and 420,564.34 is: 580,183.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,932.92 : 896,605.18 = 420,564.34 : x
  2. Step 2: Convert to fraction form
    649,932.92/896,605.18 = 420,564.34/x
  3. Step 3: Cross multiply
    649,932.92x = 896,605.18 × 420,564.34
  4. Step 4: Simplify right side
    649,932.92x = 377,080,165,767.28
  5. Step 5: Solve for x
    x = 377,080,165,767.28/649,932.92
  6. Step 6: Final answer
    x = 580,183.21

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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.