Finding the Fourth Proportional to 874,705.97, 1,207,106.31 and 487,510.61
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Solution
The fourth proportional to 874,705.97, 1,207,106.31 and 487,510.61 is: 672,771.37
Step by Step Solution
- Step 1: Write the proportion equation
874,705.97 : 1,207,106.31 = 487,510.61 : x - Step 2: Convert to fraction form
874,705.97/1,207,106.31 = 487,510.61/x - Step 3: Cross multiply
874,705.97x = 1,207,106.31 × 487,510.61 - Step 4: Simplify right side
874,705.97x = 588,477,127,487.42 - Step 5: Solve for x
x = 588,477,127,487.42/874,705.97 - Step 6: Final answer
x = 672,771.37
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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.