Home / 850,942.20-1,276,413.30-431,038.20

Finding the Fourth Proportional to 850,942.20, 1,276,413.30 and 431,038.20

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Solution

The fourth proportional to 850,942.20, 1,276,413.30 and 431,038.20 is: 646,557.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,942.20 : 1,276,413.30 = 431,038.20 : x
  2. Step 2: Convert to fraction form
    850,942.20/1,276,413.30 = 431,038.20/x
  3. Step 3: Cross multiply
    850,942.20x = 1,276,413.30 × 431,038.20
  4. Step 4: Simplify right side
    850,942.20x = 550,182,891,288.06
  5. Step 5: Solve for x
    x = 550,182,891,288.06/850,942.20
  6. Step 6: Final answer
    x = 646,557.30

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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.