Home / 1,282,011.21-1,769,065.25-708,907.86

Finding the Fourth Proportional to 1,282,011.21, 1,769,065.25 and 708,907.86

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Solution

The fourth proportional to 1,282,011.21, 1,769,065.25 and 708,907.86 is: 978,231.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,011.21 : 1,769,065.25 = 708,907.86 : x
  2. Step 2: Convert to fraction form
    1,282,011.21/1,769,065.25 = 708,907.86/x
  3. Step 3: Cross multiply
    1,282,011.21x = 1,769,065.25 × 708,907.86
  4. Step 4: Simplify right side
    1,282,011.21x = 1,254,104,257,033.33
  5. Step 5: Solve for x
    x = 1,254,104,257,033.33/1,282,011.21
  6. Step 6: Final answer
    x = 978,231.90

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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.