Finding the Fourth Proportional to 611,976.12, 917,963.97 and 191,251.98
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Solution
The fourth proportional to 611,976.12, 917,963.97 and 191,251.98 is: 286,877.90
Step by Step Solution
- Step 1: Write the proportion equation
611,976.12 : 917,963.97 = 191,251.98 : x - Step 2: Convert to fraction form
611,976.12/917,963.97 = 191,251.98/x - Step 3: Cross multiply
611,976.12x = 917,963.97 × 191,251.98 - Step 4: Simplify right side
611,976.12x = 175,562,426,831.16 - Step 5: Solve for x
x = 175,562,426,831.16/611,976.12 - Step 6: Final answer
x = 286,877.90
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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.