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Finding the Fourth Proportional to 604,989.76, 908,045.75 and 305,680.53

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Solution

The fourth proportional to 604,989.76, 908,045.75 and 305,680.53 is: 458,804.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,989.76 : 908,045.75 = 305,680.53 : x
  2. Step 2: Convert to fraction form
    604,989.76/908,045.75 = 305,680.53/x
  3. Step 3: Cross multiply
    604,989.76x = 908,045.75 × 305,680.53
  4. Step 4: Simplify right side
    604,989.76x = 277,571,906,124.25
  5. Step 5: Solve for x
    x = 277,571,906,124.25/604,989.76
  6. Step 6: Final answer
    x = 458,804.30

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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.