Home / 406,829.46-561,457.78-225,598.20

Finding the Fourth Proportional to 406,829.46, 561,457.78 and 225,598.20

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Solution

The fourth proportional to 406,829.46, 561,457.78 and 225,598.20 is: 311,343.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,829.46 : 561,457.78 = 225,598.20 : x
  2. Step 2: Convert to fraction form
    406,829.46/561,457.78 = 225,598.20/x
  3. Step 3: Cross multiply
    406,829.46x = 561,457.78 × 225,598.20
  4. Step 4: Simplify right side
    406,829.46x = 126,663,864,544.00
  5. Step 5: Solve for x
    x = 126,663,864,544.00/406,829.46
  6. Step 6: Final answer
    x = 311,343.88

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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.