Finding the Fourth Proportional to 1,020,693.36, 1,405,516.44 and 998,037.12
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Solution
The fourth proportional to 1,020,693.36, 1,405,516.44 and 998,037.12 is: 1,374,318.32
Step by Step Solution
- Step 1: Write the proportion equation
1,020,693.36 : 1,405,516.44 = 998,037.12 : x - Step 2: Convert to fraction form
1,020,693.36/1,405,516.44 = 998,037.12/x - Step 3: Cross multiply
1,020,693.36x = 1,405,516.44 × 998,037.12 - Step 4: Simplify right side
1,020,693.36x = 1,402,757,579,890.25 - Step 5: Solve for x
x = 1,402,757,579,890.25/1,020,693.36 - Step 6: Final answer
x = 1,374,318.32
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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.