Home / 813,702.08-1,220,413.80-214,669.42

Finding the Fourth Proportional to 813,702.08, 1,220,413.80 and 214,669.42

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Solution

The fourth proportional to 813,702.08, 1,220,413.80 and 214,669.42 is: 321,967.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,702.08 : 1,220,413.80 = 214,669.42 : x
  2. Step 2: Convert to fraction form
    813,702.08/1,220,413.80 = 214,669.42/x
  3. Step 3: Cross multiply
    813,702.08x = 1,220,413.80 × 214,669.42
  4. Step 4: Simplify right side
    813,702.08x = 261,985,522,606.00
  5. Step 5: Solve for x
    x = 261,985,522,606.00/813,702.08
  6. Step 6: Final answer
    x = 321,967.37

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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.