Finding the Fourth Proportional to 903,859.84, 1,247,318.40 and 495,953.92
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Solution
The fourth proportional to 903,859.84, 1,247,318.40 and 495,953.92 is: 684,411.92
Step by Step Solution
- Step 1: Write the proportion equation
903,859.84 : 1,247,318.40 = 495,953.92 : x - Step 2: Convert to fraction form
903,859.84/1,247,318.40 = 495,953.92/x - Step 3: Cross multiply
903,859.84x = 1,247,318.40 × 495,953.92 - Step 4: Simplify right side
903,859.84x = 618,612,449,968.13 - Step 5: Solve for x
x = 618,612,449,968.13/903,859.84 - Step 6: Final answer
x = 684,411.92
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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.