Finding the Fourth Proportional to 1,641,965.16, 2,266,289.70 and 963,120.36
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Solution
The fourth proportional to 1,641,965.16, 2,266,289.70 and 963,120.36 is: 1,329,327.69
Step by Step Solution
- Step 1: Write the proportion equation
1,641,965.16 : 2,266,289.70 = 963,120.36 : x - Step 2: Convert to fraction form
1,641,965.16/2,266,289.70 = 963,120.36/x - Step 3: Cross multiply
1,641,965.16x = 2,266,289.70 × 963,120.36 - Step 4: Simplify right side
1,641,965.16x = 2,182,709,751,728.29 - Step 5: Solve for x
x = 2,182,709,751,728.29/1,641,965.16 - Step 6: Final answer
x = 1,329,327.69
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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.