Finding the Fourth Proportional to 1,145,790.42, 1,581,235.65 and 783,973.14
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Solution
The fourth proportional to 1,145,790.42, 1,581,235.65 and 783,973.14 is: 1,081,913.63
Step by Step Solution
- Step 1: Write the proportion equation
1,145,790.42 : 1,581,235.65 = 783,973.14 : x - Step 2: Convert to fraction form
1,145,790.42/1,581,235.65 = 783,973.14/x - Step 3: Cross multiply
1,145,790.42x = 1,581,235.65 × 783,973.14 - Step 4: Simplify right side
1,145,790.42x = 1,239,646,277,610.44 - Step 5: Solve for x
x = 1,239,646,277,610.44/1,145,790.42 - Step 6: Final answer
x = 1,081,913.63
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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.