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Finding the Fourth Proportional to 904,770.40, 1,357,112.40 and 305,672.80

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Solution

The fourth proportional to 904,770.40, 1,357,112.40 and 305,672.80 is: 458,494.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,770.40 : 1,357,112.40 = 305,672.80 : x
  2. Step 2: Convert to fraction form
    904,770.40/1,357,112.40 = 305,672.80/x
  3. Step 3: Cross multiply
    904,770.40x = 1,357,112.40 × 305,672.80
  4. Step 4: Simplify right side
    904,770.40x = 414,832,347,222.72
  5. Step 5: Solve for x
    x = 414,832,347,222.72/904,770.40
  6. Step 6: Final answer
    x = 458,494.61

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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.