Home / 1,282,012.21-1,769,066.62-708,908.86

Finding the Fourth Proportional to 1,282,012.21, 1,769,066.62 and 708,908.86

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Solution

The fourth proportional to 1,282,012.21, 1,769,066.62 and 708,908.86 is: 978,233.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,012.21 : 1,769,066.62 = 708,908.86 : x
  2. Step 2: Convert to fraction form
    1,282,012.21/1,769,066.62 = 708,908.86/x
  3. Step 3: Cross multiply
    1,282,012.21x = 1,769,066.62 × 708,908.86
  4. Step 4: Simplify right side
    1,282,012.21x = 1,254,107,000,848.25
  5. Step 5: Solve for x
    x = 1,254,107,000,848.25/1,282,012.21
  6. Step 6: Final answer
    x = 978,233.27

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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.