Finding the Fourth Proportional to 668,753.80, 922,880.16 and 382,280.08
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Solution
The fourth proportional to 668,753.80, 922,880.16 and 382,280.08 is: 527,546.46
Step by Step Solution
- Step 1: Write the proportion equation
668,753.80 : 922,880.16 = 382,280.08 : x - Step 2: Convert to fraction form
668,753.80/922,880.16 = 382,280.08/x - Step 3: Cross multiply
668,753.80x = 922,880.16 × 382,280.08 - Step 4: Simplify right side
668,753.80x = 352,798,701,395.21 - Step 5: Solve for x
x = 352,798,701,395.21/668,753.80 - Step 6: Final answer
x = 527,546.46
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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.