Finding the Fourth Proportional to 859,036.15, 1,185,400.74 and 496,483.49
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Solution
The fourth proportional to 859,036.15, 1,185,400.74 and 496,483.49 is: 685,107.26
Step by Step Solution
- Step 1: Write the proportion equation
859,036.15 : 1,185,400.74 = 496,483.49 : x - Step 2: Convert to fraction form
859,036.15/1,185,400.74 = 496,483.49/x - Step 3: Cross multiply
859,036.15x = 1,185,400.74 × 496,483.49 - Step 4: Simplify right side
859,036.15x = 588,531,901,269.10 - Step 5: Solve for x
x = 588,531,901,269.10/859,036.15 - Step 6: Final answer
x = 685,107.26
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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.