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Finding the Fourth Proportional to 604,978.50, 908,028.52 and 305,669.45

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Solution

The fourth proportional to 604,978.50, 908,028.52 and 305,669.45 is: 458,787.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,978.50 : 908,028.52 = 305,669.45 : x
  2. Step 2: Convert to fraction form
    604,978.50/908,028.52 = 305,669.45/x
  3. Step 3: Cross multiply
    604,978.50x = 908,028.52 × 305,669.45
  4. Step 4: Simplify right side
    604,978.50x = 277,556,575,550.65
  5. Step 5: Solve for x
    x = 277,556,575,550.65/604,978.50
  6. Step 6: Final answer
    x = 458,787.50

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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.