Finding the Fourth Proportional to 849,642.39, 1,274,489.14 and 209,946.09
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Solution
The fourth proportional to 849,642.39, 1,274,489.14 and 209,946.09 is: 314,925.45
Step by Step Solution
- Step 1: Write the proportion equation
849,642.39 : 1,274,489.14 = 209,946.09 : x - Step 2: Convert to fraction form
849,642.39/1,274,489.14 = 209,946.09/x - Step 3: Cross multiply
849,642.39x = 1,274,489.14 × 209,946.09 - Step 4: Simplify right side
849,642.39x = 267,574,011,690.46 - Step 5: Solve for x
x = 267,574,011,690.46/849,642.39 - Step 6: Final answer
x = 314,925.45
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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.