Finding the Fourth Proportional to 657,703.80, 986,555.70 and 214,471.80
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Solution
The fourth proportional to 657,703.80, 986,555.70 and 214,471.80 is: 321,707.70
Step by Step Solution
- Step 1: Write the proportion equation
657,703.80 : 986,555.70 = 214,471.80 : x - Step 2: Convert to fraction form
657,703.80/986,555.70 = 214,471.80/x - Step 3: Cross multiply
657,703.80x = 986,555.70 × 214,471.80 - Step 4: Simplify right side
657,703.80x = 211,588,376,779.26 - Step 5: Solve for x
x = 211,588,376,779.26/657,703.80 - Step 6: Final answer
x = 321,707.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.