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Finding the Fourth Proportional to 468,683.20, 646,794.64 and 287,495.04

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Solution

The fourth proportional to 468,683.20, 646,794.64 and 287,495.04 is: 396,750.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,683.20 : 646,794.64 = 287,495.04 : x
  2. Step 2: Convert to fraction form
    468,683.20/646,794.64 = 287,495.04/x
  3. Step 3: Cross multiply
    468,683.20x = 646,794.64 × 287,495.04
  4. Step 4: Simplify right side
    468,683.20x = 185,950,250,898.59
  5. Step 5: Solve for x
    x = 185,950,250,898.59/468,683.20
  6. Step 6: Final answer
    x = 396,750.41

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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.