Home / 1,438,502.55-1,985,137.73-785,134.59

Finding the Fourth Proportional to 1,438,502.55, 1,985,137.73 and 785,134.59

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Solution

The fourth proportional to 1,438,502.55, 1,985,137.73 and 785,134.59 is: 1,083,488.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,502.55 : 1,985,137.73 = 785,134.59 : x
  2. Step 2: Convert to fraction form
    1,438,502.55/1,985,137.73 = 785,134.59/x
  3. Step 3: Cross multiply
    1,438,502.55x = 1,985,137.73 × 785,134.59
  4. Step 4: Simplify right side
    1,438,502.55x = 1,558,600,297,737.08
  5. Step 5: Solve for x
    x = 1,558,600,297,737.08/1,438,502.55
  6. Step 6: Final answer
    x = 1,083,488.03

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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.