Home / 905,629.80-1,358,689.71-306,591.03

Finding the Fourth Proportional to 905,629.80, 1,358,689.71 and 306,591.03

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Solution

The fourth proportional to 905,629.80, 1,358,689.71 and 306,591.03 is: 459,969.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,629.80 : 1,358,689.71 = 306,591.03 : x
  2. Step 2: Convert to fraction form
    905,629.80/1,358,689.71 = 306,591.03/x
  3. Step 3: Cross multiply
    905,629.80x = 1,358,689.71 × 306,591.03
  4. Step 4: Simplify right side
    905,629.80x = 416,562,077,639.30
  5. Step 5: Solve for x
    x = 416,562,077,639.30/905,629.80
  6. Step 6: Final answer
    x = 459,969.49

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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.