Home / 406,619.53-561,109.58-225,320.87

Finding the Fourth Proportional to 406,619.53, 561,109.58 and 225,320.87

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Solution

The fourth proportional to 406,619.53, 561,109.58 and 225,320.87 is: 310,928.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,619.53 : 561,109.58 = 225,320.87 : x
  2. Step 2: Convert to fraction form
    406,619.53/561,109.58 = 225,320.87/x
  3. Step 3: Cross multiply
    406,619.53x = 561,109.58 × 225,320.87
  4. Step 4: Simplify right side
    406,619.53x = 126,429,699,852.06
  5. Step 5: Solve for x
    x = 126,429,699,852.06/406,619.53
  6. Step 6: Final answer
    x = 310,928.75

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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.