Home / 491,462.37-678,346.38-300,635.55

Finding the Fourth Proportional to 491,462.37, 678,346.38 and 300,635.55

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Solution

The fourth proportional to 491,462.37, 678,346.38 and 300,635.55 is: 414,955.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,462.37 : 678,346.38 = 300,635.55 : x
  2. Step 2: Convert to fraction form
    491,462.37/678,346.38 = 300,635.55/x
  3. Step 3: Cross multiply
    491,462.37x = 678,346.38 × 300,635.55
  4. Step 4: Simplify right side
    491,462.37x = 203,935,037,041.81
  5. Step 5: Solve for x
    x = 203,935,037,041.81/491,462.37
  6. Step 6: Final answer
    x = 414,955.55

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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.