Home / 1,964,739.75-2,710,444.78-1,420,012.72

Finding the Fourth Proportional to 1,964,739.75, 2,710,444.78 and 1,420,012.72

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Solution

The fourth proportional to 1,964,739.75, 2,710,444.78 and 1,420,012.72 is: 1,958,969.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964,739.75 : 2,710,444.78 = 1,420,012.72 : x
  2. Step 2: Convert to fraction form
    1,964,739.75/2,710,444.78 = 1,420,012.72/x
  3. Step 3: Cross multiply
    1,964,739.75x = 2,710,444.78 × 1,420,012.72
  4. Step 4: Simplify right side
    1,964,739.75x = 3,848,866,069,620.67
  5. Step 5: Solve for x
    x = 3,848,866,069,620.67/1,964,739.75
  6. Step 6: Final answer
    x = 1,958,969.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.