Home / 406,839.48-561,471.60-225,608.16

Finding the Fourth Proportional to 406,839.48, 561,471.60 and 225,608.16

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Solution

The fourth proportional to 406,839.48, 561,471.60 and 225,608.16 is: 311,357.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,839.48 : 561,471.60 = 225,608.16 : x
  2. Step 2: Convert to fraction form
    406,839.48/561,471.60 = 225,608.16/x
  3. Step 3: Cross multiply
    406,839.48x = 561,471.60 × 225,608.16
  4. Step 4: Simplify right side
    406,839.48x = 126,672,574,568.26
  5. Step 5: Solve for x
    x = 126,672,574,568.26/406,839.48
  6. Step 6: Final answer
    x = 311,357.63

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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.