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Finding the Fourth Proportional to 663,902.40, 994,759.20 and 382,929.60

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Solution

The fourth proportional to 663,902.40, 994,759.20 and 382,929.60 is: 573,763.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,902.40 : 994,759.20 = 382,929.60 : x
  2. Step 2: Convert to fraction form
    663,902.40/994,759.20 = 382,929.60/x
  3. Step 3: Cross multiply
    663,902.40x = 994,759.20 × 382,929.60
  4. Step 4: Simplify right side
    663,902.40x = 380,922,742,552.32
  5. Step 5: Solve for x
    x = 380,922,742,552.32/663,902.40
  6. Step 6: Final answer
    x = 573,763.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.