Finding the Fourth Proportional to 403,459.09, 556,253.25 and 330,591.08
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Solution
The fourth proportional to 403,459.09, 556,253.25 and 330,591.08 is: 455,789.37
Step by Step Solution
- Step 1: Write the proportion equation
403,459.09 : 556,253.25 = 330,591.08 : x - Step 2: Convert to fraction form
403,459.09/556,253.25 = 330,591.08/x - Step 3: Cross multiply
403,459.09x = 556,253.25 × 330,591.08 - Step 4: Simplify right side
403,459.09x = 183,892,362,671.01 - Step 5: Solve for x
x = 183,892,362,671.01/403,459.09 - Step 6: Final answer
x = 455,789.37
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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.