Finding the Fourth Proportional to 1,193,486.99, 1,647,047.06 and 649,658.25
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Solution
The fourth proportional to 1,193,486.99, 1,647,047.06 and 649,658.25 is: 896,547.45
Step by Step Solution
- Step 1: Write the proportion equation
1,193,486.99 : 1,647,047.06 = 649,658.25 : x - Step 2: Convert to fraction form
1,193,486.99/1,647,047.06 = 649,658.25/x - Step 3: Cross multiply
1,193,486.99x = 1,647,047.06 × 649,658.25 - Step 4: Simplify right side
1,193,486.99x = 1,070,017,707,418.95 - Step 5: Solve for x
x = 1,070,017,707,418.95/1,193,486.99 - Step 6: Final answer
x = 896,547.45
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Double scale
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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.