Home / 1,019,776.82-1,408,731.09-817,173.62

Finding the Fourth Proportional to 1,019,776.82, 1,408,731.09 and 817,173.62

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Solution

The fourth proportional to 1,019,776.82, 1,408,731.09 and 817,173.62 is: 1,128,852.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,776.82 : 1,408,731.09 = 817,173.62 : x
  2. Step 2: Convert to fraction form
    1,019,776.82/1,408,731.09 = 817,173.62/x
  3. Step 3: Cross multiply
    1,019,776.82x = 1,408,731.09 × 817,173.62
  4. Step 4: Simplify right side
    1,019,776.82x = 1,151,177,884,421.85
  5. Step 5: Solve for x
    x = 1,151,177,884,421.85/1,019,776.82
  6. Step 6: Final answer
    x = 1,128,852.77

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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.