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Finding the Fourth Proportional to 615,102.12, 848,821.68 and 360,622.80

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Solution

The fourth proportional to 615,102.12, 848,821.68 and 360,622.80 is: 497,648.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,102.12 : 848,821.68 = 360,622.80 : x
  2. Step 2: Convert to fraction form
    615,102.12/848,821.68 = 360,622.80/x
  3. Step 3: Cross multiply
    615,102.12x = 848,821.68 × 360,622.80
  4. Step 4: Simplify right side
    615,102.12x = 306,104,450,942.30
  5. Step 5: Solve for x
    x = 306,104,450,942.30/615,102.12
  6. Step 6: Final answer
    x = 497,648.18

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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.