Home / 551,742.98-761,381.03-322,321.51

Finding the Fourth Proportional to 551,742.98, 761,381.03 and 322,321.51

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Solution

The fourth proportional to 551,742.98, 761,381.03 and 322,321.51 is: 444,789.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,742.98 : 761,381.03 = 322,321.51 : x
  2. Step 2: Convert to fraction form
    551,742.98/761,381.03 = 322,321.51/x
  3. Step 3: Cross multiply
    551,742.98x = 761,381.03 × 322,321.51
  4. Step 4: Simplify right side
    551,742.98x = 245,409,477,856.44
  5. Step 5: Solve for x
    x = 245,409,477,856.44/551,742.98
  6. Step 6: Final answer
    x = 444,789.49

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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.