Finding the Fourth Proportional to 509,931.71, 764,552.48 and 285,447.09
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Solution
The fourth proportional to 509,931.71, 764,552.48 and 285,447.09 is: 427,977.47
Step by Step Solution
- Step 1: Write the proportion equation
509,931.71 : 764,552.48 = 285,447.09 : x - Step 2: Convert to fraction form
509,931.71/764,552.48 = 285,447.09/x - Step 3: Cross multiply
509,931.71x = 764,552.48 × 285,447.09 - Step 4: Simplify right side
509,931.71x = 218,239,279,141.05 - Step 5: Solve for x
x = 218,239,279,141.05/509,931.71 - Step 6: Final answer
x = 427,977.47
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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.