Finding the Fourth Proportional to 879,139.68, 1,318,908.42 and 280,134.96
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Solution
The fourth proportional to 879,139.68, 1,318,908.42 and 280,134.96 is: 420,265.82
Step by Step Solution
- Step 1: Write the proportion equation
879,139.68 : 1,318,908.42 = 280,134.96 : x - Step 2: Convert to fraction form
879,139.68/1,318,908.42 = 280,134.96/x - Step 3: Cross multiply
879,139.68x = 1,318,908.42 × 280,134.96 - Step 4: Simplify right side
879,139.68x = 369,472,357,480.36 - Step 5: Solve for x
x = 369,472,357,480.36/879,139.68 - Step 6: Final answer
x = 420,265.82
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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.