Finding the Fourth Proportional to 684,993.70, 961,090.70 and 684,993.70
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Solution
The fourth proportional to 684,993.70, 961,090.70 and 684,993.70 is: 961,090.70
Step by Step Solution
- Step 1: Write the proportion equation
684,993.70 : 961,090.70 = 684,993.70 : x - Step 2: Convert to fraction form
684,993.70/961,090.70 = 684,993.70/x - Step 3: Cross multiply
684,993.70x = 961,090.70 × 684,993.70 - Step 4: Simplify right side
684,993.70x = 658,341,074,628.59 - Step 5: Solve for x
x = 658,341,074,628.59/684,993.70 - Step 6: Final answer
x = 961,090.70
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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.