Home / 756,413.80-1,133,454.30-656,103.40

Finding the Fourth Proportional to 756,413.80, 1,133,454.30 and 656,103.40

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Solution

The fourth proportional to 756,413.80, 1,133,454.30 and 656,103.40 is: 983,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,413.80 : 1,133,454.30 = 656,103.40 : x
  2. Step 2: Convert to fraction form
    756,413.80/1,133,454.30 = 656,103.40/x
  3. Step 3: Cross multiply
    756,413.80x = 1,133,454.30 × 656,103.40
  4. Step 4: Simplify right side
    756,413.80x = 743,663,219,974.62
  5. Step 5: Solve for x
    x = 743,663,219,974.62/756,413.80
  6. Step 6: Final answer
    x = 983,143.38

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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.