Finding the Fourth Proportional to 557,053.16, 768,652.26 and 318,543.08
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Solution
The fourth proportional to 557,053.16, 768,652.26 and 318,543.08 is: 439,543.07
Step by Step Solution
- Step 1: Write the proportion equation
557,053.16 : 768,652.26 = 318,543.08 : x - Step 2: Convert to fraction form
557,053.16/768,652.26 = 318,543.08/x - Step 3: Cross multiply
557,053.16x = 768,652.26 × 318,543.08 - Step 4: Simplify right side
557,053.16x = 244,848,858,349.36 - Step 5: Solve for x
x = 244,848,858,349.36/557,053.16 - Step 6: Final answer
x = 439,543.07
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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.