Home / 479,423.16-719,455.77-198,940.68

Finding the Fourth Proportional to 479,423.16, 719,455.77 and 198,940.68

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Solution

The fourth proportional to 479,423.16, 719,455.77 and 198,940.68 is: 298,544.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,423.16 : 719,455.77 = 198,940.68 : x
  2. Step 2: Convert to fraction form
    479,423.16/719,455.77 = 198,940.68/x
  3. Step 3: Cross multiply
    479,423.16x = 719,455.77 × 198,940.68
  4. Step 4: Simplify right side
    479,423.16x = 143,129,020,113.72
  5. Step 5: Solve for x
    x = 143,129,020,113.72/479,423.16
  6. Step 6: Final answer
    x = 298,544.23

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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.