Finding the Fourth Proportional to 693,840.70, 957,661.95 and 451,703.62
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Solution
The fourth proportional to 693,840.70, 957,661.95 and 451,703.62 is: 623,456.32
Step by Step Solution
- Step 1: Write the proportion equation
693,840.70 : 957,661.95 = 451,703.62 : x - Step 2: Convert to fraction form
693,840.70/957,661.95 = 451,703.62/x - Step 3: Cross multiply
693,840.70x = 957,661.95 × 451,703.62 - Step 4: Simplify right side
693,840.70x = 432,579,369,551.26 - Step 5: Solve for x
x = 432,579,369,551.26/693,840.70 - Step 6: Final answer
x = 623,456.32
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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.