Home / 1,119,413.45-1,679,475.15-399,739.38

Finding the Fourth Proportional to 1,119,413.45, 1,679,475.15 and 399,739.38

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Solution

The fourth proportional to 1,119,413.45, 1,679,475.15 and 399,739.38 is: 599,735.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,413.45 : 1,679,475.15 = 399,739.38 : x
  2. Step 2: Convert to fraction form
    1,119,413.45/1,679,475.15 = 399,739.38/x
  3. Step 3: Cross multiply
    1,119,413.45x = 1,679,475.15 × 399,739.38
  4. Step 4: Simplify right side
    1,119,413.45x = 671,352,355,186.41
  5. Step 5: Solve for x
    x = 671,352,355,186.41/1,119,413.45
  6. Step 6: Final answer
    x = 599,735.83

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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.