Home / 1,618,942.72-2,428,531.44-621,670.72

Finding the Fourth Proportional to 1,618,942.72, 2,428,531.44 and 621,670.72

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Solution

The fourth proportional to 1,618,942.72, 2,428,531.44 and 621,670.72 is: 932,551.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,942.72 : 2,428,531.44 = 621,670.72 : x
  2. Step 2: Convert to fraction form
    1,618,942.72/2,428,531.44 = 621,670.72/x
  3. Step 3: Cross multiply
    1,618,942.72x = 2,428,531.44 × 621,670.72
  4. Step 4: Simplify right side
    1,618,942.72x = 1,509,746,888,847.44
  5. Step 5: Solve for x
    x = 1,509,746,888,847.44/1,618,942.72
  6. Step 6: Final answer
    x = 932,551.15

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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.