Home / 406,683.20-561,222.88-225,406.82

Finding the Fourth Proportional to 406,683.20, 561,222.88 and 225,406.82

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Solution

The fourth proportional to 406,683.20, 561,222.88 and 225,406.82 is: 311,061.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,683.20 : 561,222.88 = 225,406.82 : x
  2. Step 2: Convert to fraction form
    406,683.20/561,222.88 = 225,406.82/x
  3. Step 3: Cross multiply
    406,683.20x = 561,222.88 × 225,406.82
  4. Step 4: Simplify right side
    406,683.20x = 126,503,464,692.04
  5. Step 5: Solve for x
    x = 126,503,464,692.04/406,683.20
  6. Step 6: Final answer
    x = 311,061.45

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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.