Home / 1,421,297.96-1,961,396.28-776,718.24

Finding the Fourth Proportional to 1,421,297.96, 1,961,396.28 and 776,718.24

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Solution

The fourth proportional to 1,421,297.96, 1,961,396.28 and 776,718.24 is: 1,071,873.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,297.96 : 1,961,396.28 = 776,718.24 : x
  2. Step 2: Convert to fraction form
    1,421,297.96/1,961,396.28 = 776,718.24/x
  3. Step 3: Cross multiply
    1,421,297.96x = 1,961,396.28 × 776,718.24
  4. Step 4: Simplify right side
    1,421,297.96x = 1,523,452,266,544.15
  5. Step 5: Solve for x
    x = 1,523,452,266,544.15/1,421,297.96
  6. Step 6: Final answer
    x = 1,071,873.96

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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.