Home / 589,451.24-812,019.30-487,049.96

Finding the Fourth Proportional to 589,451.24, 812,019.30 and 487,049.96

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Solution

The fourth proportional to 589,451.24, 812,019.30 and 487,049.96 is: 670,952.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,451.24 : 812,019.30 = 487,049.96 : x
  2. Step 2: Convert to fraction form
    589,451.24/812,019.30 = 487,049.96/x
  3. Step 3: Cross multiply
    589,451.24x = 812,019.30 × 487,049.96
  4. Step 4: Simplify right side
    589,451.24x = 395,493,967,584.23
  5. Step 5: Solve for x
    x = 395,493,967,584.23/589,451.24
  6. Step 6: Final answer
    x = 670,952.81

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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.