Finding the Fourth Proportional to 657,322.14, 907,104.60 and 355,516.14
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Solution
The fourth proportional to 657,322.14, 907,104.60 and 355,516.14 is: 490,612.30
Step by Step Solution
- Step 1: Write the proportion equation
657,322.14 : 907,104.60 = 355,516.14 : x - Step 2: Convert to fraction form
657,322.14/907,104.60 = 355,516.14/x - Step 3: Cross multiply
657,322.14x = 907,104.60 × 355,516.14 - Step 4: Simplify right side
657,322.14x = 322,490,325,968.24 - Step 5: Solve for x
x = 322,490,325,968.24/657,322.14 - Step 6: Final answer
x = 490,612.30
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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.