Finding the Fourth Proportional to 687,447.60, 1,029,097.80 and 604,503.60
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Solution
The fourth proportional to 687,447.60, 1,029,097.80 and 604,503.60 is: 904,931.99
Step by Step Solution
- Step 1: Write the proportion equation
687,447.60 : 1,029,097.80 = 604,503.60 : x - Step 2: Convert to fraction form
687,447.60/1,029,097.80 = 604,503.60/x - Step 3: Cross multiply
687,447.60x = 1,029,097.80 × 604,503.60 - Step 4: Simplify right side
687,447.60x = 622,093,324,852.08 - Step 5: Solve for x
x = 622,093,324,852.08/687,447.60 - Step 6: Final answer
x = 904,931.99
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1.5x scale
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.