Finding the Fourth Proportional to 740,514.18, 1,021,907.80 and 400,982.42
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Solution
The fourth proportional to 740,514.18, 1,021,907.80 and 400,982.42 is: 553,354.78
Step by Step Solution
- Step 1: Write the proportion equation
740,514.18 : 1,021,907.80 = 400,982.42 : x - Step 2: Convert to fraction form
740,514.18/1,021,907.80 = 400,982.42/x - Step 3: Cross multiply
740,514.18x = 1,021,907.80 × 400,982.42 - Step 4: Simplify right side
740,514.18x = 409,767,062,660.88 - Step 5: Solve for x
x = 409,767,062,660.88/740,514.18 - Step 6: Final answer
x = 553,354.78
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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.