Home / 1,102,413.02-1,521,372.62-612,419.64

Finding the Fourth Proportional to 1,102,413.02, 1,521,372.62 and 612,419.64

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Solution

The fourth proportional to 1,102,413.02, 1,521,372.62 and 612,419.64 is: 845,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,413.02 : 1,521,372.62 = 612,419.64 : x
  2. Step 2: Convert to fraction form
    1,102,413.02/1,521,372.62 = 612,419.64/x
  3. Step 3: Cross multiply
    1,102,413.02x = 1,521,372.62 × 612,419.64
  4. Step 4: Simplify right side
    1,102,413.02x = 931,718,468,072.16
  5. Step 5: Solve for x
    x = 931,718,468,072.16/1,102,413.02
  6. Step 6: Final answer
    x = 845,162.80

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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.