Home / 1,700,761.20-2,554,943.40-1,420,825.20

Finding the Fourth Proportional to 1,700,761.20, 2,554,943.40 and 1,420,825.20

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Solution

The fourth proportional to 1,700,761.20, 2,554,943.40 and 1,420,825.20 is: 2,134,413.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,700,761.20 : 2,554,943.40 = 1,420,825.20 : x
  2. Step 2: Convert to fraction form
    1,700,761.20/2,554,943.40 = 1,420,825.20/x
  3. Step 3: Cross multiply
    1,700,761.20x = 2,554,943.40 × 1,420,825.20
  4. Step 4: Simplify right side
    1,700,761.20x = 3,630,127,967,293.68
  5. Step 5: Solve for x
    x = 3,630,127,967,293.68/1,700,761.20
  6. Step 6: Final answer
    x = 2,134,413.68

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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.