Finding the Fourth Proportional to 862,629.80, 1,292,972.70 and 413,565.80
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Solution
The fourth proportional to 862,629.80, 1,292,972.70 and 413,565.80 is: 619,882.70
Step by Step Solution
- Step 1: Write the proportion equation
862,629.80 : 1,292,972.70 = 413,565.80 : x - Step 2: Convert to fraction form
862,629.80/1,292,972.70 = 413,565.80/x - Step 3: Cross multiply
862,629.80x = 1,292,972.70 × 413,565.80 - Step 4: Simplify right side
862,629.80x = 534,729,289,053.66 - Step 5: Solve for x
x = 534,729,289,053.66/862,629.80 - Step 6: Final answer
x = 619,882.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.