Finding the Fourth Proportional to 739,409.23, 1,020,431.99 and 417,001.69
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Solution
The fourth proportional to 739,409.23, 1,020,431.99 and 417,001.69 is: 575,488.98
Step by Step Solution
- Step 1: Write the proportion equation
739,409.23 : 1,020,431.99 = 417,001.69 : x - Step 2: Convert to fraction form
739,409.23/1,020,431.99 = 417,001.69/x - Step 3: Cross multiply
739,409.23x = 1,020,431.99 × 417,001.69 - Step 4: Simplify right side
739,409.23x = 425,521,864,360.06 - Step 5: Solve for x
x = 425,521,864,360.06/739,409.23 - Step 6: Final answer
x = 575,488.98
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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.