Home / 1,618,653.78-2,421,988.29-1,297,824.53

Finding the Fourth Proportional to 1,618,653.78, 2,421,988.29 and 1,297,824.53

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Solution

The fourth proportional to 1,618,653.78, 2,421,988.29 and 1,297,824.53 is: 1,941,932.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,653.78 : 2,421,988.29 = 1,297,824.53 : x
  2. Step 2: Convert to fraction form
    1,618,653.78/2,421,988.29 = 1,297,824.53/x
  3. Step 3: Cross multiply
    1,618,653.78x = 2,421,988.29 × 1,297,824.53
  4. Step 4: Simplify right side
    1,618,653.78x = 3,143,315,802,024.81
  5. Step 5: Solve for x
    x = 3,143,315,802,024.81/1,618,653.78
  6. Step 6: Final answer
    x = 1,941,932.14

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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.