Home / 711,413.22-1,067,121.65-290,689.10

Finding the Fourth Proportional to 711,413.22, 1,067,121.65 and 290,689.10

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Solution

The fourth proportional to 711,413.22, 1,067,121.65 and 290,689.10 is: 436,034.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,413.22 : 1,067,121.65 = 290,689.10 : x
  2. Step 2: Convert to fraction form
    711,413.22/1,067,121.65 = 290,689.10/x
  3. Step 3: Cross multiply
    711,413.22x = 1,067,121.65 × 290,689.10
  4. Step 4: Simplify right side
    711,413.22x = 310,200,626,693.41
  5. Step 5: Solve for x
    x = 310,200,626,693.41/711,413.22
  6. Step 6: Final answer
    x = 436,034.39

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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.