Home / 783,804.78-1,176,230.43-285,168.78

Finding the Fourth Proportional to 783,804.78, 1,176,230.43 and 285,168.78

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Solution

The fourth proportional to 783,804.78, 1,176,230.43 and 285,168.78 is: 427,943.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,804.78 : 1,176,230.43 = 285,168.78 : x
  2. Step 2: Convert to fraction form
    783,804.78/1,176,230.43 = 285,168.78/x
  3. Step 3: Cross multiply
    783,804.78x = 1,176,230.43 × 285,168.78
  4. Step 4: Simplify right side
    783,804.78x = 335,424,196,721.98
  5. Step 5: Solve for x
    x = 335,424,196,721.98/783,804.78
  6. Step 6: Final answer
    x = 427,943.55

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1.5x scale

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.