Finding the Fourth Proportional to 1,605,083.16, 2,214,955.36 and 870,021.66
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Solution
The fourth proportional to 1,605,083.16, 2,214,955.36 and 870,021.66 is: 1,200,597.69
Step by Step Solution
- Step 1: Write the proportion equation
1,605,083.16 : 2,214,955.36 = 870,021.66 : x - Step 2: Convert to fraction form
1,605,083.16/2,214,955.36 = 870,021.66/x - Step 3: Cross multiply
1,605,083.16x = 2,214,955.36 × 870,021.66 - Step 4: Simplify right side
1,605,083.16x = 1,927,059,139,133.10 - Step 5: Solve for x
x = 1,927,059,139,133.10/1,605,083.16 - Step 6: Final answer
x = 1,200,597.69
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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.