Finding the Fourth Proportional to 881,305.76, 1,216,219.94 and 478,923.68
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Solution
The fourth proportional to 881,305.76, 1,216,219.94 and 478,923.68 is: 660,924.46
Step by Step Solution
- Step 1: Write the proportion equation
881,305.76 : 1,216,219.94 = 478,923.68 : x - Step 2: Convert to fraction form
881,305.76/1,216,219.94 = 478,923.68/x - Step 3: Cross multiply
881,305.76x = 1,216,219.94 × 478,923.68 - Step 4: Simplify right side
881,305.76x = 582,476,529,354.18 - Step 5: Solve for x
x = 582,476,529,354.18/881,305.76 - Step 6: Final answer
x = 660,924.46
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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.