Finding the Fourth Proportional to 659,907.09, 910,671.75 and 358,101.09
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Solution
The fourth proportional to 659,907.09, 910,671.75 and 358,101.09 is: 494,179.49
Step by Step Solution
- Step 1: Write the proportion equation
659,907.09 : 910,671.75 = 358,101.09 : x - Step 2: Convert to fraction form
659,907.09/910,671.75 = 358,101.09/x - Step 3: Cross multiply
659,907.09x = 910,671.75 × 358,101.09 - Step 4: Simplify right side
659,907.09x = 326,112,546,307.21 - Step 5: Solve for x
x = 326,112,546,307.21/659,907.09 - Step 6: Final answer
x = 494,179.49
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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.