Home / 2,775,856.32-4,163,813.28-978,404.88

Finding the Fourth Proportional to 2,775,856.32, 4,163,813.28 and 978,404.88

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Solution

The fourth proportional to 2,775,856.32, 4,163,813.28 and 978,404.88 is: 1,467,617.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775,856.32 : 4,163,813.28 = 978,404.88 : x
  2. Step 2: Convert to fraction form
    2,775,856.32/4,163,813.28 = 978,404.88/x
  3. Step 3: Cross multiply
    2,775,856.32x = 4,163,813.28 × 978,404.88
  4. Step 4: Simplify right side
    2,775,856.32x = 4,073,895,232,560.81
  5. Step 5: Solve for x
    x = 4,073,895,232,560.81/2,775,856.32
  6. Step 6: Final answer
    x = 1,467,617.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.