Finding the Fourth Proportional to 712,412.39, 1,068,395.09 and 207,008.30
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Solution
The fourth proportional to 712,412.39, 1,068,395.09 and 207,008.30 is: 310,447.50
Step by Step Solution
- Step 1: Write the proportion equation
712,412.39 : 1,068,395.09 = 207,008.30 : x - Step 2: Convert to fraction form
712,412.39/1,068,395.09 = 207,008.30/x - Step 3: Cross multiply
712,412.39x = 1,068,395.09 × 207,008.30 - Step 4: Simplify right side
712,412.39x = 221,166,644,932.23 - Step 5: Solve for x
x = 221,166,644,932.23/712,412.39 - Step 6: Final answer
x = 310,447.50
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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.