Finding the Fourth Proportional to 1,178,724.48, 1,626,212.80 and 771,058.48
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Solution
The fourth proportional to 1,178,724.48, 1,626,212.80 and 771,058.48 is: 1,063,781.39
Step by Step Solution
- Step 1: Write the proportion equation
1,178,724.48 : 1,626,212.80 = 771,058.48 : x - Step 2: Convert to fraction form
1,178,724.48/1,626,212.80 = 771,058.48/x - Step 3: Cross multiply
1,178,724.48x = 1,626,212.80 × 771,058.48 - Step 4: Simplify right side
1,178,724.48x = 1,253,905,169,724.54 - Step 5: Solve for x
x = 1,253,905,169,724.54/1,178,724.48 - Step 6: Final answer
x = 1,063,781.39
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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.