Home / 886,629.38-1,330,130.87-287,543.83

Finding the Fourth Proportional to 886,629.38, 1,330,130.87 and 287,543.83

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Solution

The fourth proportional to 886,629.38, 1,330,130.87 and 287,543.83 is: 431,376.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,629.38 : 1,330,130.87 = 287,543.83 : x
  2. Step 2: Convert to fraction form
    886,629.38/1,330,130.87 = 287,543.83/x
  3. Step 3: Cross multiply
    886,629.38x = 1,330,130.87 × 287,543.83
  4. Step 4: Simplify right side
    886,629.38x = 382,470,922,154.57
  5. Step 5: Solve for x
    x = 382,470,922,154.57/886,629.38
  6. Step 6: Final answer
    x = 431,376.32

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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.