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Finding the Fourth Proportional to 469,797.36, 648,598.81 and 308,929.85

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Solution

The fourth proportional to 469,797.36, 648,598.81 and 308,929.85 is: 426,506.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,797.36 : 648,598.81 = 308,929.85 : x
  2. Step 2: Convert to fraction form
    469,797.36/648,598.81 = 308,929.85/x
  3. Step 3: Cross multiply
    469,797.36x = 648,598.81 × 308,929.85
  4. Step 4: Simplify right side
    469,797.36x = 200,371,528,778.54
  5. Step 5: Solve for x
    x = 200,371,528,778.54/469,797.36
  6. Step 6: Final answer
    x = 426,506.29

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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.