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Finding the Fourth Proportional to 668,825.76, 923,006.16 and 367,030.56

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Solution

The fourth proportional to 668,825.76, 923,006.16 and 367,030.56 is: 506,516.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,825.76 : 923,006.16 = 367,030.56 : x
  2. Step 2: Convert to fraction form
    668,825.76/923,006.16 = 367,030.56/x
  3. Step 3: Cross multiply
    668,825.76x = 923,006.16 × 367,030.56
  4. Step 4: Simplify right side
    668,825.76x = 338,771,467,788.25
  5. Step 5: Solve for x
    x = 338,771,467,788.25/668,825.76
  6. Step 6: Final answer
    x = 506,516.78

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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.