Finding the Fourth Proportional to 680,063.14, 938,487.12 and 374,132.94
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Solution
The fourth proportional to 680,063.14, 938,487.12 and 374,132.94 is: 516,303.45
Step by Step Solution
- Step 1: Write the proportion equation
680,063.14 : 938,487.12 = 374,132.94 : x - Step 2: Convert to fraction form
680,063.14/938,487.12 = 374,132.94/x - Step 3: Cross multiply
680,063.14x = 938,487.12 × 374,132.94 - Step 4: Simplify right side
680,063.14x = 351,118,945,357.73 - Step 5: Solve for x
x = 351,118,945,357.73/680,063.14 - Step 6: Final answer
x = 516,303.45
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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.