Home / 2,228,485.52-3,075,309.92-1,209,890.40

Finding the Fourth Proportional to 2,228,485.52, 3,075,309.92 and 1,209,890.40

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Solution

The fourth proportional to 2,228,485.52, 3,075,309.92 and 1,209,890.40 is: 1,669,648.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228,485.52 : 3,075,309.92 = 1,209,890.40 : x
  2. Step 2: Convert to fraction form
    2,228,485.52/3,075,309.92 = 1,209,890.40/x
  3. Step 3: Cross multiply
    2,228,485.52x = 3,075,309.92 × 1,209,890.40
  4. Step 4: Simplify right side
    2,228,485.52x = 3,720,787,949,232.77
  5. Step 5: Solve for x
    x = 3,720,787,949,232.77/2,228,485.52
  6. Step 6: Final answer
    x = 1,669,648.70

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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.