Finding the Fourth Proportional to 438,434.80, 614,430.80 and 438,434.80
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Solution
The fourth proportional to 438,434.80, 614,430.80 and 438,434.80 is: 614,430.80
Step by Step Solution
- Step 1: Write the proportion equation
438,434.80 : 614,430.80 = 438,434.80 : x - Step 2: Convert to fraction form
438,434.80/614,430.80 = 438,434.80/x - Step 3: Cross multiply
438,434.80x = 614,430.80 × 438,434.80 - Step 4: Simplify right side
438,434.80x = 269,387,844,911.84 - Step 5: Solve for x
x = 269,387,844,911.84/438,434.80 - Step 6: Final answer
x = 614,430.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.