Home / 406,795.68-561,378.03-225,507.15

Finding the Fourth Proportional to 406,795.68, 561,378.03 and 225,507.15

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Solution

The fourth proportional to 406,795.68, 561,378.03 and 225,507.15 is: 311,199.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,795.68 : 561,378.03 = 225,507.15 : x
  2. Step 2: Convert to fraction form
    406,795.68/561,378.03 = 225,507.15/x
  3. Step 3: Cross multiply
    406,795.68x = 561,378.03 × 225,507.15
  4. Step 4: Simplify right side
    406,795.68x = 126,594,759,617.92
  5. Step 5: Solve for x
    x = 126,594,759,617.92/406,795.68
  6. Step 6: Final answer
    x = 311,199.86

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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.