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Finding the Fourth Proportional to 559,628.88, 772,265.30 and 304,974.60

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Solution

The fourth proportional to 559,628.88, 772,265.30 and 304,974.60 is: 420,852.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,628.88 : 772,265.30 = 304,974.60 : x
  2. Step 2: Convert to fraction form
    559,628.88/772,265.30 = 304,974.60/x
  3. Step 3: Cross multiply
    559,628.88x = 772,265.30 × 304,974.60
  4. Step 4: Simplify right side
    559,628.88x = 235,521,300,961.38
  5. Step 5: Solve for x
    x = 235,521,300,961.38/559,628.88
  6. Step 6: Final answer
    x = 420,852.66

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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.