Home / 761,738.78-1,051,199.67-422,207.03

Finding the Fourth Proportional to 761,738.78, 1,051,199.67 and 422,207.03

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Solution

The fourth proportional to 761,738.78, 1,051,199.67 and 422,207.03 is: 582,645.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,738.78 : 1,051,199.67 = 422,207.03 : x
  2. Step 2: Convert to fraction form
    761,738.78/1,051,199.67 = 422,207.03/x
  3. Step 3: Cross multiply
    761,738.78x = 1,051,199.67 × 422,207.03
  4. Step 4: Simplify right side
    761,738.78x = 443,823,893,235.68
  5. Step 5: Solve for x
    x = 443,823,893,235.68/761,738.78
  6. Step 6: Final answer
    x = 582,645.79

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1.5x scale

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.