Finding the Fourth Proportional to 499,877.60, 689,868.09 and 285,023.07
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Solution
The fourth proportional to 499,877.60, 689,868.09 and 285,023.07 is: 393,352.94
Step by Step Solution
- Step 1: Write the proportion equation
499,877.60 : 689,868.09 = 285,023.07 : x - Step 2: Convert to fraction form
499,877.60/689,868.09 = 285,023.07/x - Step 3: Cross multiply
499,877.60x = 689,868.09 × 285,023.07 - Step 4: Simplify right side
499,877.60x = 196,628,320,906.84 - Step 5: Solve for x
x = 196,628,320,906.84/499,877.60 - Step 6: Final answer
x = 393,352.94
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.