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Finding the Fourth Proportional to 570,609.05, 788,260.70 and 455,736.87

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Solution

The fourth proportional to 570,609.05, 788,260.70 and 455,736.87 is: 629,571.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,609.05 : 788,260.70 = 455,736.87 : x
  2. Step 2: Convert to fraction form
    570,609.05/788,260.70 = 455,736.87/x
  3. Step 3: Cross multiply
    570,609.05x = 788,260.70 × 455,736.87
  4. Step 4: Simplify right side
    570,609.05x = 359,239,461,883.33
  5. Step 5: Solve for x
    x = 359,239,461,883.33/570,609.05
  6. Step 6: Final answer
    x = 629,571.97

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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.