Finding the Fourth Proportional to 708,703.20, 1,063,054.80 and 620,129.70
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Solution
The fourth proportional to 708,703.20, 1,063,054.80 and 620,129.70 is: 930,194.55
Step by Step Solution
- Step 1: Write the proportion equation
708,703.20 : 1,063,054.80 = 620,129.70 : x - Step 2: Convert to fraction form
708,703.20/1,063,054.80 = 620,129.70/x - Step 3: Cross multiply
708,703.20x = 1,063,054.80 × 620,129.70 - Step 4: Simplify right side
708,703.20x = 659,231,854,207.56 - Step 5: Solve for x
x = 659,231,854,207.56/708,703.20 - Step 6: Final answer
x = 930,194.55
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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.