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Finding the Fourth Proportional to 559,672.62, 772,325.73 and 305,018.34

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Solution

The fourth proportional to 559,672.62, 772,325.73 and 305,018.34 is: 420,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,672.62 : 772,325.73 = 305,018.34 : x
  2. Step 2: Convert to fraction form
    559,672.62/772,325.73 = 305,018.34/x
  3. Step 3: Cross multiply
    559,672.62x = 772,325.73 × 305,018.34
  4. Step 4: Simplify right side
    559,672.62x = 235,573,512,103.89
  5. Step 5: Solve for x
    x = 235,573,512,103.89/559,672.62
  6. Step 6: Final answer
    x = 420,913.05

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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.