Finding the Fourth Proportional to 636,460.04, 878,317.98 and 349,998.68
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Solution
The fourth proportional to 636,460.04, 878,317.98 and 349,998.68 is: 482,999.90
Step by Step Solution
- Step 1: Write the proportion equation
636,460.04 : 878,317.98 = 349,998.68 : x - Step 2: Convert to fraction form
636,460.04/878,317.98 = 349,998.68/x - Step 3: Cross multiply
636,460.04x = 878,317.98 × 349,998.68 - Step 4: Simplify right side
636,460.04x = 307,410,133,620.27 - Step 5: Solve for x
x = 307,410,133,620.27/636,460.04 - Step 6: Final answer
x = 482,999.90
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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.