Home / 406,922.12-561,559.23-225,641.69

Finding the Fourth Proportional to 406,922.12, 561,559.23 and 225,641.69

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Solution

The fourth proportional to 406,922.12, 561,559.23 and 225,641.69 is: 311,389.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,922.12 : 561,559.23 = 225,641.69 : x
  2. Step 2: Convert to fraction form
    406,922.12/561,559.23 = 225,641.69/x
  3. Step 3: Cross multiply
    406,922.12x = 561,559.23 × 225,641.69
  4. Step 4: Simplify right side
    406,922.12x = 126,711,170,884.50
  5. Step 5: Solve for x
    x = 126,711,170,884.50/406,922.12
  6. Step 6: Final answer
    x = 311,389.25

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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.