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Finding the Fourth Proportional to 671,138.46, 926,171.24 and 369,332.46

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Solution

The fourth proportional to 671,138.46, 926,171.24 and 369,332.46 is: 509,678.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,138.46 : 926,171.24 = 369,332.46 : x
  2. Step 2: Convert to fraction form
    671,138.46/926,171.24 = 369,332.46/x
  3. Step 3: Cross multiply
    671,138.46x = 926,171.24 × 369,332.46
  4. Step 4: Simplify right side
    671,138.46x = 342,065,102,450.45
  5. Step 5: Solve for x
    x = 342,065,102,450.45/671,138.46
  6. Step 6: Final answer
    x = 509,678.89

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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.