Home / 1,405,379.45-1,939,407.55-760,785.50

Finding the Fourth Proportional to 1,405,379.45, 1,939,407.55 and 760,785.50

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Solution

The fourth proportional to 1,405,379.45, 1,939,407.55 and 760,785.50 is: 1,049,875.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,379.45 : 1,939,407.55 = 760,785.50 : x
  2. Step 2: Convert to fraction form
    1,405,379.45/1,939,407.55 = 760,785.50/x
  3. Step 3: Cross multiply
    1,405,379.45x = 1,939,407.55 × 760,785.50
  4. Step 4: Simplify right side
    1,405,379.45x = 1,475,473,131,031.52
  5. Step 5: Solve for x
    x = 1,475,473,131,031.52/1,405,379.45
  6. Step 6: Final answer
    x = 1,049,875.27

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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.