Finding the Fourth Proportional to 657,788.14, 907,747.68 and 355,982.14
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Solution
The fourth proportional to 657,788.14, 907,747.68 and 355,982.14 is: 491,255.38
Step by Step Solution
- Step 1: Write the proportion equation
657,788.14 : 907,747.68 = 355,982.14 : x - Step 2: Convert to fraction form
657,788.14/907,747.68 = 355,982.14/x - Step 3: Cross multiply
657,788.14x = 907,747.68 × 355,982.14 - Step 4: Simplify right side
657,788.14x = 323,141,961,706.44 - Step 5: Solve for x
x = 323,141,961,706.44/657,788.14 - Step 6: Final answer
x = 491,255.38
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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.