Finding the Fourth Proportional to 657,319.62, 907,101.16 and 355,513.62
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Solution
The fourth proportional to 657,319.62, 907,101.16 and 355,513.62 is: 490,608.84
Step by Step Solution
- Step 1: Write the proportion equation
657,319.62 : 907,101.16 = 355,513.62 : x - Step 2: Convert to fraction form
657,319.62/907,101.16 = 355,513.62/x - Step 3: Cross multiply
657,319.62x = 907,101.16 × 355,513.62 - Step 4: Simplify right side
657,319.62x = 322,486,817,097.80 - Step 5: Solve for x
x = 322,486,817,097.80/657,319.62 - Step 6: Final answer
x = 490,608.84
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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.