Finding the Fourth Proportional to 805,689.09, 1,209,066.05 and 379,346.84
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Solution
The fourth proportional to 805,689.09, 1,209,066.05 and 379,346.84 is: 569,270.93
Step by Step Solution
- Step 1: Write the proportion equation
805,689.09 : 1,209,066.05 = 379,346.84 : x - Step 2: Convert to fraction form
805,689.09/1,209,066.05 = 379,346.84/x - Step 3: Cross multiply
805,689.09x = 1,209,066.05 × 379,346.84 - Step 4: Simplify right side
805,689.09x = 458,655,377,476.72 - Step 5: Solve for x
x = 458,655,377,476.72/805,689.09 - Step 6: Final answer
x = 569,270.93
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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.