Finding the Fourth Proportional to 748,112.16, 1,032,378.84 and 408,581.76
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Solution
The fourth proportional to 748,112.16, 1,032,378.84 and 408,581.76 is: 563,834.12
Step by Step Solution
- Step 1: Write the proportion equation
748,112.16 : 1,032,378.84 = 408,581.76 : x - Step 2: Convert to fraction form
748,112.16/1,032,378.84 = 408,581.76/x - Step 3: Cross multiply
748,112.16x = 1,032,378.84 × 408,581.76 - Step 4: Simplify right side
748,112.16x = 421,811,163,433.96 - Step 5: Solve for x
x = 421,811,163,433.96/748,112.16 - Step 6: Final answer
x = 563,834.12
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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.