Home / 621,413.69-932,993.28-318,024.81

Finding the Fourth Proportional to 621,413.69, 932,993.28 and 318,024.81

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Solution

The fourth proportional to 621,413.69, 932,993.28 and 318,024.81 is: 477,483.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,413.69 : 932,993.28 = 318,024.81 : x
  2. Step 2: Convert to fraction form
    621,413.69/932,993.28 = 318,024.81/x
  3. Step 3: Cross multiply
    621,413.69x = 932,993.28 × 318,024.81
  4. Step 4: Simplify right side
    621,413.69x = 296,715,010,603.28
  5. Step 5: Solve for x
    x = 296,715,010,603.28/621,413.69
  6. Step 6: Final answer
    x = 477,483.87

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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.