Finding the Fourth Proportional to 509,551.80, 764,327.70 and 478,447.80
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Solution
The fourth proportional to 509,551.80, 764,327.70 and 478,447.80 is: 717,671.70
Step by Step Solution
- Step 1: Write the proportion equation
509,551.80 : 764,327.70 = 478,447.80 : x - Step 2: Convert to fraction form
509,551.80/764,327.70 = 478,447.80/x - Step 3: Cross multiply
509,551.80x = 764,327.70 × 478,447.80 - Step 4: Simplify right side
509,551.80x = 365,690,906,544.06 - Step 5: Solve for x
x = 365,690,906,544.06/509,551.80 - Step 6: Final answer
x = 717,671.70
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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.