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Finding the Fourth Proportional to 559,662.62, 772,311.93 and 305,008.34

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Solution

The fourth proportional to 559,662.62, 772,311.93 and 305,008.34 is: 420,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,662.62 : 772,311.93 = 305,008.34 : x
  2. Step 2: Convert to fraction form
    559,662.62/772,311.93 = 305,008.34/x
  3. Step 3: Cross multiply
    559,662.62x = 772,311.93 × 305,008.34
  4. Step 4: Simplify right side
    559,662.62x = 235,561,579,731.50
  5. Step 5: Solve for x
    x = 235,561,579,731.50/559,662.62
  6. Step 6: Final answer
    x = 420,899.25

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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.