Home / 874,916.80-1,312,375.20-210,068.80

Finding the Fourth Proportional to 874,916.80, 1,312,375.20 and 210,068.80

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Solution

The fourth proportional to 874,916.80, 1,312,375.20 and 210,068.80 is: 315,103.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,916.80 : 1,312,375.20 = 210,068.80 : x
  2. Step 2: Convert to fraction form
    874,916.80/1,312,375.20 = 210,068.80/x
  3. Step 3: Cross multiply
    874,916.80x = 1,312,375.20 × 210,068.80
  4. Step 4: Simplify right side
    874,916.80x = 275,689,083,413.76
  5. Step 5: Solve for x
    x = 275,689,083,413.76/874,916.80
  6. Step 6: Final answer
    x = 315,103.20

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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.