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Finding the Fourth Proportional to 648,773.15, 973,367.95 and 311,838.26

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Solution

The fourth proportional to 648,773.15, 973,367.95 and 311,838.26 is: 467,857.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,773.15 : 973,367.95 = 311,838.26 : x
  2. Step 2: Convert to fraction form
    648,773.15/973,367.95 = 311,838.26/x
  3. Step 3: Cross multiply
    648,773.15x = 973,367.95 × 311,838.26
  4. Step 4: Simplify right side
    648,773.15x = 303,533,367,867.77
  5. Step 5: Solve for x
    x = 303,533,367,867.77/648,773.15
  6. Step 6: Final answer
    x = 467,857.48

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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.