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Finding the Fourth Proportional to 648,648.66, 972,183.34 and 459,162.73

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Solution

The fourth proportional to 648,648.66, 972,183.34 and 459,162.73 is: 688,185.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,648.66 : 972,183.34 = 459,162.73 : x
  2. Step 2: Convert to fraction form
    648,648.66/972,183.34 = 459,162.73/x
  3. Step 3: Cross multiply
    648,648.66x = 972,183.34 × 459,162.73
  4. Step 4: Simplify right side
    648,648.66x = 446,390,356,454.92
  5. Step 5: Solve for x
    x = 446,390,356,454.92/648,648.66
  6. Step 6: Final answer
    x = 688,185.12

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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.