Home / 723,413.43-1,085,109.21-302,689.31

Finding the Fourth Proportional to 723,413.43, 1,085,109.21 and 302,689.31

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Solution

The fourth proportional to 723,413.43, 1,085,109.21 and 302,689.31 is: 454,029.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,413.43 : 1,085,109.21 = 302,689.31 : x
  2. Step 2: Convert to fraction form
    723,413.43/1,085,109.21 = 302,689.31/x
  3. Step 3: Cross multiply
    723,413.43x = 1,085,109.21 × 302,689.31
  4. Step 4: Simplify right side
    723,413.43x = 328,450,952,624.00
  5. Step 5: Solve for x
    x = 328,450,952,624.00/723,413.43
  6. Step 6: Final answer
    x = 454,029.38

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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.