Home / 1,405,394.43-1,939,444.91-760,814.61

Finding the Fourth Proportional to 1,405,394.43, 1,939,444.91 and 760,814.61

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Solution

The fourth proportional to 1,405,394.43, 1,939,444.91 and 760,814.61 is: 1,049,924.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,394.43 : 1,939,444.91 = 760,814.61 : x
  2. Step 2: Convert to fraction form
    1,405,394.43/1,939,444.91 = 760,814.61/x
  3. Step 3: Cross multiply
    1,405,394.43x = 1,939,444.91 × 760,814.61
  4. Step 4: Simplify right side
    1,405,394.43x = 1,475,558,022,818.14
  5. Step 5: Solve for x
    x = 1,475,558,022,818.14/1,405,394.43
  6. Step 6: Final answer
    x = 1,049,924.48

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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.