Home / 851,413.86-1,175,155.84-511,816.50

Finding the Fourth Proportional to 851,413.86, 1,175,155.84 and 511,816.50

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Solution

The fourth proportional to 851,413.86, 1,175,155.84 and 511,816.50 is: 706,429.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,413.86 : 1,175,155.84 = 511,816.50 : x
  2. Step 2: Convert to fraction form
    851,413.86/1,175,155.84 = 511,816.50/x
  3. Step 3: Cross multiply
    851,413.86x = 1,175,155.84 × 511,816.50
  4. Step 4: Simplify right side
    851,413.86x = 601,464,148,983.36
  5. Step 5: Solve for x
    x = 601,464,148,983.36/851,413.86
  6. Step 6: Final answer
    x = 706,429.83

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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.