Finding the Fourth Proportional to 657,049.19, 906,727.86 and 355,243.19
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Solution
The fourth proportional to 657,049.19, 906,727.86 and 355,243.19 is: 490,235.59
Step by Step Solution
- Step 1: Write the proportion equation
657,049.19 : 906,727.86 = 355,243.19 : x - Step 2: Convert to fraction form
657,049.19/906,727.86 = 355,243.19/x - Step 3: Cross multiply
657,049.19x = 906,727.86 × 355,243.19 - Step 4: Simplify right side
657,049.19x = 322,108,892,914.63 - Step 5: Solve for x
x = 322,108,892,914.63/657,049.19 - Step 6: Final answer
x = 490,235.59
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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.