Home / 479,447.16-719,491.52-198,964.40

Finding the Fourth Proportional to 479,447.16, 719,491.52 and 198,964.40

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Solution

The fourth proportional to 479,447.16, 719,491.52 and 198,964.40 is: 298,579.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,447.16 : 719,491.52 = 198,964.40 : x
  2. Step 2: Convert to fraction form
    479,447.16/719,491.52 = 198,964.40/x
  3. Step 3: Cross multiply
    479,447.16x = 719,491.52 × 198,964.40
  4. Step 4: Simplify right side
    479,447.16x = 143,153,198,581.89
  5. Step 5: Solve for x
    x = 143,153,198,581.89/479,447.16
  6. Step 6: Final answer
    x = 298,579.72

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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.