Home / 1,405,379.07-1,939,407.03-760,785.12

Finding the Fourth Proportional to 1,405,379.07, 1,939,407.03 and 760,785.12

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Solution

The fourth proportional to 1,405,379.07, 1,939,407.03 and 760,785.12 is: 1,049,874.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,379.07 : 1,939,407.03 = 760,785.12 : x
  2. Step 2: Convert to fraction form
    1,405,379.07/1,939,407.03 = 760,785.12/x
  3. Step 3: Cross multiply
    1,405,379.07x = 1,939,407.03 × 760,785.12
  4. Step 4: Simplify right side
    1,405,379.07x = 1,475,472,010,047.39
  5. Step 5: Solve for x
    x = 1,475,472,010,047.39/1,405,379.07
  6. Step 6: Final answer
    x = 1,049,874.76

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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.