Finding the Fourth Proportional to 917,944.74, 1,376,916.84 and 286,858.62
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Solution
The fourth proportional to 917,944.74, 1,376,916.84 and 286,858.62 is: 430,287.85
Step by Step Solution
- Step 1: Write the proportion equation
917,944.74 : 1,376,916.84 = 286,858.62 : x - Step 2: Convert to fraction form
917,944.74/1,376,916.84 = 286,858.62/x - Step 3: Cross multiply
917,944.74x = 1,376,916.84 × 286,858.62 - Step 4: Simplify right side
917,944.74x = 394,980,464,577.16 - Step 5: Solve for x
x = 394,980,464,577.16/917,944.74 - Step 6: Final answer
x = 430,287.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.