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Finding the Fourth Proportional to 561,296.90, 774,589.55 and 303,173.59

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Solution

The fourth proportional to 561,296.90, 774,589.55 and 303,173.59 is: 418,379.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,296.90 : 774,589.55 = 303,173.59 : x
  2. Step 2: Convert to fraction form
    561,296.90/774,589.55 = 303,173.59/x
  3. Step 3: Cross multiply
    561,296.90x = 774,589.55 × 303,173.59
  4. Step 4: Simplify right side
    561,296.90x = 234,835,094,649.99
  5. Step 5: Solve for x
    x = 234,835,094,649.99/561,296.90
  6. Step 6: Final answer
    x = 418,379.46

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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.