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Finding the Fourth Proportional to 675,289.80, 931,765.14 and 373,425.48

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Solution

The fourth proportional to 675,289.80, 931,765.14 and 373,425.48 is: 515,252.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,289.80 : 931,765.14 = 373,425.48 : x
  2. Step 2: Convert to fraction form
    675,289.80/931,765.14 = 373,425.48/x
  3. Step 3: Cross multiply
    675,289.80x = 931,765.14 × 373,425.48
  4. Step 4: Simplify right side
    675,289.80x = 347,944,844,651.77
  5. Step 5: Solve for x
    x = 347,944,844,651.77/675,289.80
  6. Step 6: Final answer
    x = 515,252.63

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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.