Finding the Fourth Proportional to 770,485.74, 1,063,249.86 and 426,312.70
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Solution
The fourth proportional to 770,485.74, 1,063,249.86 and 426,312.70 is: 588,300.20
Step by Step Solution
- Step 1: Write the proportion equation
770,485.74 : 1,063,249.86 = 426,312.70 : x - Step 2: Convert to fraction form
770,485.74/1,063,249.86 = 426,312.70/x - Step 3: Cross multiply
770,485.74x = 1,063,249.86 × 426,312.70 - Step 4: Simplify right side
770,485.74x = 453,276,918,591.22 - Step 5: Solve for x
x = 453,276,918,591.22/770,485.74 - Step 6: Final answer
x = 588,300.20
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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.