Home / 1,021,588.62-1,409,960.45-779,413.60

Finding the Fourth Proportional to 1,021,588.62, 1,409,960.45 and 779,413.60

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Solution

The fourth proportional to 1,021,588.62, 1,409,960.45 and 779,413.60 is: 1,075,719.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,588.62 : 1,409,960.45 = 779,413.60 : x
  2. Step 2: Convert to fraction form
    1,021,588.62/1,409,960.45 = 779,413.60/x
  3. Step 3: Cross multiply
    1,021,588.62x = 1,409,960.45 × 779,413.60
  4. Step 4: Simplify right side
    1,021,588.62x = 1,098,942,350,192.12
  5. Step 5: Solve for x
    x = 1,098,942,350,192.12/1,021,588.62
  6. Step 6: Final answer
    x = 1,075,719.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.