Finding the Fourth Proportional to 1,646,979.93, 2,272,831.97 and 921,827.63
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Solution
The fourth proportional to 1,646,979.93, 2,272,831.97 and 921,827.63 is: 1,272,121.93
Step by Step Solution
- Step 1: Write the proportion equation
1,646,979.93 : 2,272,831.97 = 921,827.63 : x - Step 2: Convert to fraction form
1,646,979.93/2,272,831.97 = 921,827.63/x - Step 3: Cross multiply
1,646,979.93x = 2,272,831.97 × 921,827.63 - Step 4: Simplify right side
1,646,979.93x = 2,095,159,292,320.03 - Step 5: Solve for x
x = 2,095,159,292,320.03/1,646,979.93 - Step 6: Final answer
x = 1,272,121.93
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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.