Home / 831,032.52-1,245,646.44-425,668.56

Finding the Fourth Proportional to 831,032.52, 1,245,646.44 and 425,668.56

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Solution

The fourth proportional to 831,032.52, 1,245,646.44 and 425,668.56 is: 638,040.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,032.52 : 1,245,646.44 = 425,668.56 : x
  2. Step 2: Convert to fraction form
    831,032.52/1,245,646.44 = 425,668.56/x
  3. Step 3: Cross multiply
    831,032.52x = 1,245,646.44 × 425,668.56
  4. Step 4: Simplify right side
    831,032.52x = 530,232,526,383.93
  5. Step 5: Solve for x
    x = 530,232,526,383.93/831,032.52
  6. Step 6: Final answer
    x = 638,040.65

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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.