Home / 859,097.10-1,288,645.65-298,131.60

Finding the Fourth Proportional to 859,097.10, 1,288,645.65 and 298,131.60

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Solution

The fourth proportional to 859,097.10, 1,288,645.65 and 298,131.60 is: 447,197.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,097.10 : 1,288,645.65 = 298,131.60 : x
  2. Step 2: Convert to fraction form
    859,097.10/1,288,645.65 = 298,131.60/x
  3. Step 3: Cross multiply
    859,097.10x = 1,288,645.65 × 298,131.60
  4. Step 4: Simplify right side
    859,097.10x = 384,185,989,467.54
  5. Step 5: Solve for x
    x = 384,185,989,467.54/859,097.10
  6. Step 6: Final answer
    x = 447,197.40

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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.