Home / 1,128,769.65-1,693,413.03-489,180.75

Finding the Fourth Proportional to 1,128,769.65, 1,693,413.03 and 489,180.75

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Solution

The fourth proportional to 1,128,769.65, 1,693,413.03 and 489,180.75 is: 733,883.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,769.65 : 1,693,413.03 = 489,180.75 : x
  2. Step 2: Convert to fraction form
    1,128,769.65/1,693,413.03 = 489,180.75/x
  3. Step 3: Cross multiply
    1,128,769.65x = 1,693,413.03 × 489,180.75
  4. Step 4: Simplify right side
    1,128,769.65x = 828,385,056,075.17
  5. Step 5: Solve for x
    x = 828,385,056,075.17/1,128,769.65
  6. Step 6: Final answer
    x = 733,883.18

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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.