Finding the Fourth Proportional to 838,908.16, 1,157,946.24 and 570,791.68
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Solution
The fourth proportional to 838,908.16, 1,157,946.24 and 570,791.68 is: 787,864.65
Step by Step Solution
- Step 1: Write the proportion equation
838,908.16 : 1,157,946.24 = 570,791.68 : x - Step 2: Convert to fraction form
838,908.16/1,157,946.24 = 570,791.68/x - Step 3: Cross multiply
838,908.16x = 1,157,946.24 × 570,791.68 - Step 4: Simplify right side
838,908.16x = 660,946,079,679.28 - Step 5: Solve for x
x = 660,946,079,679.28/838,908.16 - Step 6: Final answer
x = 787,864.65
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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.