Finding the Fourth Proportional to 684,201.06, 944,169.62 and 378,257.99
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Solution
The fourth proportional to 684,201.06, 944,169.62 and 378,257.99 is: 521,980.62
Step by Step Solution
- Step 1: Write the proportion equation
684,201.06 : 944,169.62 = 378,257.99 : x - Step 2: Convert to fraction form
684,201.06/944,169.62 = 378,257.99/x - Step 3: Cross multiply
684,201.06x = 944,169.62 × 378,257.99 - Step 4: Simplify right side
684,201.06x = 357,139,696,068.13 - Step 5: Solve for x
x = 357,139,696,068.13/684,201.06 - Step 6: Final answer
x = 521,980.62
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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.