Home / 406,786.45-561,306.18-225,498.22

Finding the Fourth Proportional to 406,786.45, 561,306.18 and 225,498.22

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Solution

The fourth proportional to 406,786.45, 561,306.18 and 225,498.22 is: 311,154.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,786.45 : 561,306.18 = 225,498.22 : x
  2. Step 2: Convert to fraction form
    406,786.45/561,306.18 = 225,498.22/x
  3. Step 3: Cross multiply
    406,786.45x = 561,306.18 × 225,498.22
  4. Step 4: Simplify right side
    406,786.45x = 126,573,544,465.00
  5. Step 5: Solve for x
    x = 126,573,544,465.00/406,786.45
  6. Step 6: Final answer
    x = 311,154.77

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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.