Finding the Fourth Proportional to 657,197.13, 906,932.08 and 355,391.13
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Solution
The fourth proportional to 657,197.13, 906,932.08 and 355,391.13 is: 490,439.78
Step by Step Solution
- Step 1: Write the proportion equation
657,197.13 : 906,932.08 = 355,391.13 : x - Step 2: Convert to fraction form
657,197.13/906,932.08 = 355,391.13/x - Step 3: Cross multiply
657,197.13x = 906,932.08 × 355,391.13 - Step 4: Simplify right side
657,197.13x = 322,315,616,744.45 - Step 5: Solve for x
x = 322,315,616,744.45/657,197.13 - Step 6: Final answer
x = 490,439.78
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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.