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Finding the Fourth Proportional to 660,096, 910,933.56 and 358,290

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Solution

The fourth proportional to 660,096, 910,933.56 and 358,290 is: 494,440.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,096 : 910,933.56 = 358,290 : x
  2. Step 2: Convert to fraction form
    660,096/910,933.56 = 358,290/x
  3. Step 3: Cross multiply
    660,096x = 910,933.56 × 358,290
  4. Step 4: Simplify right side
    660,096x = 326,378,385,212.40
  5. Step 5: Solve for x
    x = 326,378,385,212.40/660,096
  6. Step 6: Final answer
    x = 494,440.79

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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.