Home / 386,413.52-579,746.04-186,756.56

Finding the Fourth Proportional to 386,413.52, 579,746.04 and 186,756.56

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Solution

The fourth proportional to 386,413.52, 579,746.04 and 186,756.56 is: 280,195.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,413.52 : 579,746.04 = 186,756.56 : x
  2. Step 2: Convert to fraction form
    386,413.52/579,746.04 = 186,756.56/x
  3. Step 3: Cross multiply
    386,413.52x = 579,746.04 × 186,756.56
  4. Step 4: Simplify right side
    386,413.52x = 108,271,376,104.02
  5. Step 5: Solve for x
    x = 108,271,376,104.02/386,413.52
  6. Step 6: Final answer
    x = 280,195.62

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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.