Finding the Fourth Proportional to 657,193.13, 906,926.56 and 355,387.13
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Solution
The fourth proportional to 657,193.13, 906,926.56 and 355,387.13 is: 490,434.26
Step by Step Solution
- Step 1: Write the proportion equation
657,193.13 : 906,926.56 = 355,387.13 : x - Step 2: Convert to fraction form
657,193.13/906,926.56 = 355,387.13/x - Step 3: Cross multiply
657,193.13x = 906,926.56 × 355,387.13 - Step 4: Simplify right side
657,193.13x = 322,310,027,279.17 - Step 5: Solve for x
x = 322,310,027,279.17/657,193.13 - Step 6: Final answer
x = 490,434.26
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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.