Home / 787,942.86-1,182,283.47-388,365.72

Finding the Fourth Proportional to 787,942.86, 1,182,283.47 and 388,365.72

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Solution

The fourth proportional to 787,942.86, 1,182,283.47 and 388,365.72 is: 582,730.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,942.86 : 1,182,283.47 = 388,365.72 : x
  2. Step 2: Convert to fraction form
    787,942.86/1,182,283.47 = 388,365.72/x
  3. Step 3: Cross multiply
    787,942.86x = 1,182,283.47 × 388,365.72
  4. Step 4: Simplify right side
    787,942.86x = 459,158,371,070.65
  5. Step 5: Solve for x
    x = 459,158,371,070.65/787,942.86
  6. Step 6: Final answer
    x = 582,730.54

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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.