Finding the Fourth Proportional to 557,115.80, 769,540.99 and 460,709.07
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Solution
The fourth proportional to 557,115.80, 769,540.99 and 460,709.07 is: 636,374.90
Step by Step Solution
- Step 1: Write the proportion equation
557,115.80 : 769,540.99 = 460,709.07 : x - Step 2: Convert to fraction form
557,115.80/769,540.99 = 460,709.07/x - Step 3: Cross multiply
557,115.80x = 769,540.99 × 460,709.07 - Step 4: Simplify right side
557,115.80x = 354,534,513,829.78 - Step 5: Solve for x
x = 354,534,513,829.78/557,115.80 - Step 6: Final answer
x = 636,374.90
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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.