Home / 499,421.94-749,139.83-162,464.36

Finding the Fourth Proportional to 499,421.94, 749,139.83 and 162,464.36

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Solution

The fourth proportional to 499,421.94, 749,139.83 and 162,464.36 is: 243,698.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,421.94 : 749,139.83 = 162,464.36 : x
  2. Step 2: Convert to fraction form
    499,421.94/749,139.83 = 162,464.36/x
  3. Step 3: Cross multiply
    499,421.94x = 749,139.83 × 162,464.36
  4. Step 4: Simplify right side
    499,421.94x = 121,708,518,473.44
  5. Step 5: Solve for x
    x = 121,708,518,473.44/499,421.94
  6. Step 6: Final answer
    x = 243,698.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.