Finding the Fourth Proportional to 905,153.68, 1,357,905.48 and 306,212.14
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Solution
The fourth proportional to 905,153.68, 1,357,905.48 and 306,212.14 is: 459,377.40
Step by Step Solution
- Step 1: Write the proportion equation
905,153.68 : 1,357,905.48 = 306,212.14 : x - Step 2: Convert to fraction form
905,153.68/1,357,905.48 = 306,212.14/x - Step 3: Cross multiply
905,153.68x = 1,357,905.48 × 306,212.14 - Step 4: Simplify right side
905,153.68x = 415,807,142,948.53 - Step 5: Solve for x
x = 415,807,142,948.53/905,153.68 - Step 6: Final answer
x = 459,377.40
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1.5x scale
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.