Home / 2,585,629.40-3,878,433.51-788,507.60

Finding the Fourth Proportional to 2,585,629.40, 3,878,433.51 and 788,507.60

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Solution

The fourth proportional to 2,585,629.40, 3,878,433.51 and 788,507.60 is: 1,182,758.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585,629.40 : 3,878,433.51 = 788,507.60 : x
  2. Step 2: Convert to fraction form
    2,585,629.40/3,878,433.51 = 788,507.60/x
  3. Step 3: Cross multiply
    2,585,629.40x = 3,878,433.51 × 788,507.60
  4. Step 4: Simplify right side
    2,585,629.40x = 3,058,174,298,729.68
  5. Step 5: Solve for x
    x = 3,058,174,298,729.68/2,585,629.40
  6. Step 6: Final answer
    x = 1,182,758.17

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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.