Home / 1,405,616.48-1,939,747.92-761,037.20

Finding the Fourth Proportional to 1,405,616.48, 1,939,747.92 and 761,037.20

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Solution

The fourth proportional to 1,405,616.48, 1,939,747.92 and 761,037.20 is: 1,050,229.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,616.48 : 1,939,747.92 = 761,037.20 : x
  2. Step 2: Convert to fraction form
    1,405,616.48/1,939,747.92 = 761,037.20/x
  3. Step 3: Cross multiply
    1,405,616.48x = 1,939,747.92 × 761,037.20
  4. Step 4: Simplify right side
    1,405,616.48x = 1,476,220,325,742.62
  5. Step 5: Solve for x
    x = 1,476,220,325,742.62/1,405,616.48
  6. Step 6: Final answer
    x = 1,050,229.81

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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.