Home / 1,438,707.76-1,985,405.76-794,127.88

Finding the Fourth Proportional to 1,438,707.76, 1,985,405.76 and 794,127.88

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Solution

The fourth proportional to 1,438,707.76, 1,985,405.76 and 794,127.88 is: 1,095,890.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,707.76 : 1,985,405.76 = 794,127.88 : x
  2. Step 2: Convert to fraction form
    1,438,707.76/1,985,405.76 = 794,127.88/x
  3. Step 3: Cross multiply
    1,438,707.76x = 1,985,405.76 × 794,127.88
  4. Step 4: Simplify right side
    1,438,707.76x = 1,576,666,067,128.59
  5. Step 5: Solve for x
    x = 1,576,666,067,128.59/1,438,707.76
  6. Step 6: Final answer
    x = 1,095,890.43

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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.