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Finding the Fourth Proportional to 605,390.46, 907,462.54 and 268,589.72

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Solution

The fourth proportional to 605,390.46, 907,462.54 and 268,589.72 is: 402,608.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,390.46 : 907,462.54 = 268,589.72 : x
  2. Step 2: Convert to fraction form
    605,390.46/907,462.54 = 268,589.72/x
  3. Step 3: Cross multiply
    605,390.46x = 907,462.54 × 268,589.72
  4. Step 4: Simplify right side
    605,390.46x = 243,735,112,133.48
  5. Step 5: Solve for x
    x = 243,735,112,133.48/605,390.46
  6. Step 6: Final answer
    x = 402,608.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.