Finding the Fourth Proportional to 858,941.24, 1,288,149.40 and 409,425.28
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Solution
The fourth proportional to 858,941.24, 1,288,149.40 and 409,425.28 is: 614,012.82
Step by Step Solution
- Step 1: Write the proportion equation
858,941.24 : 1,288,149.40 = 409,425.28 : x - Step 2: Convert to fraction form
858,941.24/1,288,149.40 = 409,425.28/x - Step 3: Cross multiply
858,941.24x = 1,288,149.40 × 409,425.28 - Step 4: Simplify right side
858,941.24x = 527,400,928,776.83 - Step 5: Solve for x
x = 527,400,928,776.83/858,941.24 - Step 6: Final answer
x = 614,012.82
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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.