Home / 406,764.06-561,348.96-245,587.80

Finding the Fourth Proportional to 406,764.06, 561,348.96 and 245,587.80

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Solution

The fourth proportional to 406,764.06, 561,348.96 and 245,587.80 is: 338,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,764.06 : 561,348.96 = 245,587.80 : x
  2. Step 2: Convert to fraction form
    406,764.06/561,348.96 = 245,587.80/x
  3. Step 3: Cross multiply
    406,764.06x = 561,348.96 × 245,587.80
  4. Step 4: Simplify right side
    406,764.06x = 137,860,456,118.69
  5. Step 5: Solve for x
    x = 137,860,456,118.69/406,764.06
  6. Step 6: Final answer
    x = 338,919.95

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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.