Home / 761,782.83-1,142,662.85-185,408.09

Finding the Fourth Proportional to 761,782.83, 1,142,662.85 and 185,408.09

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Solution

The fourth proportional to 761,782.83, 1,142,662.85 and 185,408.09 is: 278,109.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,782.83 : 1,142,662.85 = 185,408.09 : x
  2. Step 2: Convert to fraction form
    761,782.83/1,142,662.85 = 185,408.09/x
  3. Step 3: Cross multiply
    761,782.83x = 1,142,662.85 × 185,408.09
  4. Step 4: Simplify right side
    761,782.83x = 211,858,934,872.37
  5. Step 5: Solve for x
    x = 211,858,934,872.37/761,782.83
  6. Step 6: Final answer
    x = 278,109.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.