Home / 886,728.87-1,330,280.11-287,643.25

Finding the Fourth Proportional to 886,728.87, 1,330,280.11 and 287,643.25

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Solution

The fourth proportional to 886,728.87, 1,330,280.11 and 287,643.25 is: 431,525.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,728.87 : 1,330,280.11 = 287,643.25 : x
  2. Step 2: Convert to fraction form
    886,728.87/1,330,280.11 = 287,643.25/x
  3. Step 3: Cross multiply
    886,728.87x = 1,330,280.11 × 287,643.25
  4. Step 4: Simplify right side
    886,728.87x = 382,646,096,273.16
  5. Step 5: Solve for x
    x = 382,646,096,273.16/886,728.87
  6. Step 6: Final answer
    x = 431,525.47

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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.