Finding the Fourth Proportional to 806,988.07, 1,113,592.21 and 484,711.75
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Solution
The fourth proportional to 806,988.07, 1,113,592.21 and 484,711.75 is: 668,871.39
Step by Step Solution
- Step 1: Write the proportion equation
806,988.07 : 1,113,592.21 = 484,711.75 : x - Step 2: Convert to fraction form
806,988.07/1,113,592.21 = 484,711.75/x - Step 3: Cross multiply
806,988.07x = 1,113,592.21 × 484,711.75 - Step 4: Simplify right side
806,988.07x = 539,771,228,895.47 - Step 5: Solve for x
x = 539,771,228,895.47/806,988.07 - Step 6: Final answer
x = 668,871.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.