Finding the Fourth Proportional to 668,563.98, 922,612.88 and 362,639.60
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Solution
The fourth proportional to 668,563.98, 922,612.88 and 362,639.60 is: 500,439.70
Step by Step Solution
- Step 1: Write the proportion equation
668,563.98 : 922,612.88 = 362,639.60 : x - Step 2: Convert to fraction form
668,563.98/922,612.88 = 362,639.60/x - Step 3: Cross multiply
668,563.98x = 922,612.88 × 362,639.60 - Step 4: Simplify right side
668,563.98x = 334,575,959,331.79 - Step 5: Solve for x
x = 334,575,959,331.79/668,563.98 - Step 6: Final answer
x = 500,439.70
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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.