Finding the Fourth Proportional to 786,132.09, 1,084,740.80 and 441,904.23
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Solution
The fourth proportional to 786,132.09, 1,084,740.80 and 441,904.23 is: 609,759.55
Step by Step Solution
- Step 1: Write the proportion equation
786,132.09 : 1,084,740.80 = 441,904.23 : x - Step 2: Convert to fraction form
786,132.09/1,084,740.80 = 441,904.23/x - Step 3: Cross multiply
786,132.09x = 1,084,740.80 × 441,904.23 - Step 4: Simplify right side
786,132.09x = 479,351,545,764.06 - Step 5: Solve for x
x = 479,351,545,764.06/786,132.09 - Step 6: Final answer
x = 609,759.55
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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.