Finding the Fourth Proportional to 684,116.73, 944,074.80 and 378,201.06
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Solution
The fourth proportional to 684,116.73, 944,074.80 and 378,201.06 is: 521,913.99
Step by Step Solution
- Step 1: Write the proportion equation
684,116.73 : 944,074.80 = 378,201.06 : x - Step 2: Convert to fraction form
684,116.73/944,074.80 = 378,201.06/x - Step 3: Cross multiply
684,116.73x = 944,074.80 × 378,201.06 - Step 4: Simplify right side
684,116.73x = 357,050,090,079.29 - Step 5: Solve for x
x = 357,050,090,079.29/684,116.73 - Step 6: Final answer
x = 521,913.99
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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.