Finding the Fourth Proportional to 657,291.75, 907,062.62 and 355,485.75
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Solution
The fourth proportional to 657,291.75, 907,062.62 and 355,485.75 is: 490,570.34
Step by Step Solution
- Step 1: Write the proportion equation
657,291.75 : 907,062.62 = 355,485.75 : x - Step 2: Convert to fraction form
657,291.75/907,062.62 = 355,485.75/x - Step 3: Cross multiply
657,291.75x = 907,062.62 × 355,485.75 - Step 4: Simplify right side
657,291.75x = 322,447,833,990.24 - Step 5: Solve for x
x = 322,447,833,990.24/657,291.75 - Step 6: Final answer
x = 490,570.34
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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.