Home / 1,640,698.20-2,459,880.90-629,429.40

Finding the Fourth Proportional to 1,640,698.20, 2,459,880.90 and 629,429.40

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Solution

The fourth proportional to 1,640,698.20, 2,459,880.90 and 629,429.40 is: 943,696.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,698.20 : 2,459,880.90 = 629,429.40 : x
  2. Step 2: Convert to fraction form
    1,640,698.20/2,459,880.90 = 629,429.40/x
  3. Step 3: Cross multiply
    1,640,698.20x = 2,459,880.90 × 629,429.40
  4. Step 4: Simplify right side
    1,640,698.20x = 1,548,321,358,958.46
  5. Step 5: Solve for x
    x = 1,548,321,358,958.46/1,640,698.20
  6. Step 6: Final answer
    x = 943,696.63

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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.