Home / 1,438,939.83-1,985,741.25-785,566.89

Finding the Fourth Proportional to 1,438,939.83, 1,985,741.25 and 785,566.89

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Solution

The fourth proportional to 1,438,939.83, 1,985,741.25 and 785,566.89 is: 1,084,084.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,939.83 : 1,985,741.25 = 785,566.89 : x
  2. Step 2: Convert to fraction form
    1,438,939.83/1,985,741.25 = 785,566.89/x
  3. Step 3: Cross multiply
    1,438,939.83x = 1,985,741.25 × 785,566.89
  4. Step 4: Simplify right side
    1,438,939.83x = 1,559,932,578,107.21
  5. Step 5: Solve for x
    x = 1,559,932,578,107.21/1,438,939.83
  6. Step 6: Final answer
    x = 1,084,084.65

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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.