Finding the Fourth Proportional to 725,804.05, 1,001,499.70 and 415,658.40
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Solution
The fourth proportional to 725,804.05, 1,001,499.70 and 415,658.40 is: 573,545.66
Step by Step Solution
- Step 1: Write the proportion equation
725,804.05 : 1,001,499.70 = 415,658.40 : x - Step 2: Convert to fraction form
725,804.05/1,001,499.70 = 415,658.40/x - Step 3: Cross multiply
725,804.05x = 1,001,499.70 × 415,658.40 - Step 4: Simplify right side
725,804.05x = 416,281,760,824.19 - Step 5: Solve for x
x = 416,281,760,824.19/725,804.05 - Step 6: Final answer
x = 573,545.66
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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.