Home / 825,828.35-1,139,641.27-458,361.79

Finding the Fourth Proportional to 825,828.35, 1,139,641.27 and 458,361.79

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Solution

The fourth proportional to 825,828.35, 1,139,641.27 and 458,361.79 is: 632,538.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,828.35 : 1,139,641.27 = 458,361.79 : x
  2. Step 2: Convert to fraction form
    825,828.35/1,139,641.27 = 458,361.79/x
  3. Step 3: Cross multiply
    825,828.35x = 1,139,641.27 × 458,361.79
  4. Step 4: Simplify right side
    825,828.35x = 522,368,008,480.07
  5. Step 5: Solve for x
    x = 522,368,008,480.07/825,828.35
  6. Step 6: Final answer
    x = 632,538.24

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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.