Finding the Fourth Proportional to 1,578,518.08, 2,178,348.42 and 853,365.58
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Solution
The fourth proportional to 1,578,518.08, 2,178,348.42 and 853,365.58 is: 1,177,640.97
Step by Step Solution
- Step 1: Write the proportion equation
1,578,518.08 : 2,178,348.42 = 853,365.58 : x - Step 2: Convert to fraction form
1,578,518.08/2,178,348.42 = 853,365.58/x - Step 3: Cross multiply
1,578,518.08x = 2,178,348.42 × 853,365.58 - Step 4: Simplify right side
1,578,518.08x = 1,858,927,562,875.38 - Step 5: Solve for x
x = 1,858,927,562,875.38/1,578,518.08 - Step 6: Final answer
x = 1,177,640.97
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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.