Finding the Fourth Proportional to 656,148.36, 905,484.80 and 354,342.36
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Solution
The fourth proportional to 656,148.36, 905,484.80 and 354,342.36 is: 488,992.49
Step by Step Solution
- Step 1: Write the proportion equation
656,148.36 : 905,484.80 = 354,342.36 : x - Step 2: Convert to fraction form
656,148.36/905,484.80 = 354,342.36/x - Step 3: Cross multiply
656,148.36x = 905,484.80 × 354,342.36 - Step 4: Simplify right side
656,148.36x = 320,851,620,976.13 - Step 5: Solve for x
x = 320,851,620,976.13/656,148.36 - Step 6: Final answer
x = 488,992.49
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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.