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Finding the Fourth Proportional to 1,307,538, 1,803,987.72 and 797,985.36

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Solution

The fourth proportional to 1,307,538, 1,803,987.72 and 797,985.36 is: 1,100,966.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,538 : 1,803,987.72 = 797,985.36 : x
  2. Step 2: Convert to fraction form
    1,307,538/1,803,987.72 = 797,985.36/x
  3. Step 3: Cross multiply
    1,307,538x = 1,803,987.72 × 797,985.36
  4. Step 4: Simplify right side
    1,307,538x = 1,439,555,790,179.78
  5. Step 5: Solve for x
    x = 1,439,555,790,179.78/1,307,538
  6. Step 6: Final answer
    x = 1,100,966.69

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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.