Finding the Fourth Proportional to 557,779.74, 769,740.87 and 303,130.98
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Solution
The fourth proportional to 557,779.74, 769,740.87 and 303,130.98 is: 418,323.38
Step by Step Solution
- Step 1: Write the proportion equation
557,779.74 : 769,740.87 = 303,130.98 : x - Step 2: Convert to fraction form
557,779.74/769,740.87 = 303,130.98/x - Step 3: Cross multiply
557,779.74x = 769,740.87 × 303,130.98 - Step 4: Simplify right side
557,779.74x = 233,332,304,269.15 - Step 5: Solve for x
x = 233,332,304,269.15/557,779.74 - Step 6: Final answer
x = 418,323.38
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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.