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Finding the Fourth Proportional to 458,336.40, 632,620.50 and 313,200.94

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Solution

The fourth proportional to 458,336.40, 632,620.50 and 313,200.94 is: 432,296.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,336.40 : 632,620.50 = 313,200.94 : x
  2. Step 2: Convert to fraction form
    458,336.40/632,620.50 = 313,200.94/x
  3. Step 3: Cross multiply
    458,336.40x = 632,620.50 × 313,200.94
  4. Step 4: Simplify right side
    458,336.40x = 198,137,335,263.27
  5. Step 5: Solve for x
    x = 198,137,335,263.27/458,336.40
  6. Step 6: Final answer
    x = 432,296.75

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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.