Home / 898,429.51-1,239,941.44-511,339.05

Finding the Fourth Proportional to 898,429.51, 1,239,941.44 and 511,339.05

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Solution

The fourth proportional to 898,429.51, 1,239,941.44 and 511,339.05 is: 705,709.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,429.51 : 1,239,941.44 = 511,339.05 : x
  2. Step 2: Convert to fraction form
    898,429.51/1,239,941.44 = 511,339.05/x
  3. Step 3: Cross multiply
    898,429.51x = 1,239,941.44 × 511,339.05
  4. Step 4: Simplify right side
    898,429.51x = 634,030,476,163.73
  5. Step 5: Solve for x
    x = 634,030,476,163.73/898,429.51
  6. Step 6: Final answer
    x = 705,709.76

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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.