Home / 1,918,824.57-2,647,970.53-1,059,378.52

Finding the Fourth Proportional to 1,918,824.57, 2,647,970.53 and 1,059,378.52

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Solution

The fourth proportional to 1,918,824.57, 2,647,970.53 and 1,059,378.52 is: 1,461,938.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,824.57 : 2,647,970.53 = 1,059,378.52 : x
  2. Step 2: Convert to fraction form
    1,918,824.57/2,647,970.53 = 1,059,378.52/x
  3. Step 3: Cross multiply
    1,918,824.57x = 2,647,970.53 × 1,059,378.52
  4. Step 4: Simplify right side
    1,918,824.57x = 2,805,203,101,075.02
  5. Step 5: Solve for x
    x = 2,805,203,101,075.02/1,918,824.57
  6. Step 6: Final answer
    x = 1,461,938.28

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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.