Home / 1,438,940.83-1,985,742.63-785,567.89

Finding the Fourth Proportional to 1,438,940.83, 1,985,742.63 and 785,567.89

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Solution

The fourth proportional to 1,438,940.83, 1,985,742.63 and 785,567.89 is: 1,084,086.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,940.83 : 1,985,742.63 = 785,567.89 : x
  2. Step 2: Convert to fraction form
    1,438,940.83/1,985,742.63 = 785,567.89/x
  3. Step 3: Cross multiply
    1,438,940.83x = 1,985,742.63 × 785,567.89
  4. Step 4: Simplify right side
    1,438,940.83x = 1,559,935,647,932.15
  5. Step 5: Solve for x
    x = 1,559,935,647,932.15/1,438,940.83
  6. Step 6: Final answer
    x = 1,084,086.03

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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.