Home / 1,918,549.65-2,647,604.25-1,047,385.71

Finding the Fourth Proportional to 1,918,549.65, 2,647,604.25 and 1,047,385.71

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Solution

The fourth proportional to 1,918,549.65, 2,647,604.25 and 1,047,385.71 is: 1,445,395.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,549.65 : 2,647,604.25 = 1,047,385.71 : x
  2. Step 2: Convert to fraction form
    1,918,549.65/2,647,604.25 = 1,047,385.71/x
  3. Step 3: Cross multiply
    1,918,549.65x = 2,647,604.25 × 1,047,385.71
  4. Step 4: Simplify right side
    1,918,549.65x = 2,773,062,857,185.27
  5. Step 5: Solve for x
    x = 2,773,062,857,185.27/1,918,549.65
  6. Step 6: Final answer
    x = 1,445,395.41

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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.