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Finding the Fourth Proportional to 458,903.05, 632,775.71 and 313,732.55

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Solution

The fourth proportional to 458,903.05, 632,775.71 and 313,732.55 is: 432,601.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,903.05 : 632,775.71 = 313,732.55 : x
  2. Step 2: Convert to fraction form
    458,903.05/632,775.71 = 313,732.55/x
  3. Step 3: Cross multiply
    458,903.05x = 632,775.71 × 313,732.55
  4. Step 4: Simplify right side
    458,903.05x = 198,522,339,442.63
  5. Step 5: Solve for x
    x = 198,522,339,442.63/458,903.05
  6. Step 6: Final answer
    x = 432,601.92

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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.