Home / 809,518.32-1,117,137.02-446,942.88

Finding the Fourth Proportional to 809,518.32, 1,117,137.02 and 446,942.88

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Solution

The fourth proportional to 809,518.32, 1,117,137.02 and 446,942.88 is: 616,782.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,518.32 : 1,117,137.02 = 446,942.88 : x
  2. Step 2: Convert to fraction form
    809,518.32/1,117,137.02 = 446,942.88/x
  3. Step 3: Cross multiply
    809,518.32x = 1,117,137.02 × 446,942.88
  4. Step 4: Simplify right side
    809,518.32x = 499,296,434,838.70
  5. Step 5: Solve for x
    x = 499,296,434,838.70/809,518.32
  6. Step 6: Final answer
    x = 616,782.13

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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.