Finding the Fourth Proportional to 557,126.88, 768,835.08 and 302,478.09
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Solution
The fourth proportional to 557,126.88, 768,835.08 and 302,478.09 is: 417,419.76
Step by Step Solution
- Step 1: Write the proportion equation
557,126.88 : 768,835.08 = 302,478.09 : x - Step 2: Convert to fraction form
557,126.88/768,835.08 = 302,478.09/x - Step 3: Cross multiply
557,126.88x = 768,835.08 × 302,478.09 - Step 4: Simplify right side
557,126.88x = 232,555,766,523.40 - Step 5: Solve for x
x = 232,555,766,523.40/557,126.88 - Step 6: Final answer
x = 417,419.76
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1.5x scale
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.