Home / 1,438,672.05-1,985,415.53-785,336.85

Finding the Fourth Proportional to 1,438,672.05, 1,985,415.53 and 785,336.85

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Solution

The fourth proportional to 1,438,672.05, 1,985,415.53 and 785,336.85 is: 1,083,791.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,672.05 : 1,985,415.53 = 785,336.85 : x
  2. Step 2: Convert to fraction form
    1,438,672.05/1,985,415.53 = 785,336.85/x
  3. Step 3: Cross multiply
    1,438,672.05x = 1,985,415.53 × 785,336.85
  4. Step 4: Simplify right side
    1,438,672.05x = 1,559,219,974,344.60
  5. Step 5: Solve for x
    x = 1,559,219,974,344.60/1,438,672.05
  6. Step 6: Final answer
    x = 1,083,791.11

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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.