Finding the Fourth Proportional to 660,893.51, 912,331.81 and 416,237.79
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Solution
The fourth proportional to 660,893.51, 912,331.81 and 416,237.79 is: 574,596.31
Step by Step Solution
- Step 1: Write the proportion equation
660,893.51 : 912,331.81 = 416,237.79 : x - Step 2: Convert to fraction form
660,893.51/912,331.81 = 416,237.79/x - Step 3: Cross multiply
660,893.51x = 912,331.81 × 416,237.79 - Step 4: Simplify right side
660,893.51x = 379,746,976,321.44 - Step 5: Solve for x
x = 379,746,976,321.44/660,893.51 - Step 6: Final answer
x = 574,596.31
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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.