Finding the Fourth Proportional to 809,428.08, 1,116,837.36 and 469,714.08
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Solution
The fourth proportional to 809,428.08, 1,116,837.36 and 469,714.08 is: 648,104.81
Step by Step Solution
- Step 1: Write the proportion equation
809,428.08 : 1,116,837.36 = 469,714.08 : x - Step 2: Convert to fraction form
809,428.08/1,116,837.36 = 469,714.08/x - Step 3: Cross multiply
809,428.08x = 1,116,837.36 × 469,714.08 - Step 4: Simplify right side
809,428.08x = 524,594,233,062.03 - Step 5: Solve for x
x = 524,594,233,062.03/809,428.08 - Step 6: Final answer
x = 648,104.81
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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.