Finding the Fourth Proportional to 711,248.79, 981,613.21 and 466,439.53
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Solution
The fourth proportional to 711,248.79, 981,613.21 and 466,439.53 is: 643,745.49
Step by Step Solution
- Step 1: Write the proportion equation
711,248.79 : 981,613.21 = 466,439.53 : x - Step 2: Convert to fraction form
711,248.79/981,613.21 = 466,439.53/x - Step 3: Cross multiply
711,248.79x = 981,613.21 × 466,439.53 - Step 4: Simplify right side
711,248.79x = 457,863,201,981.99 - Step 5: Solve for x
x = 457,863,201,981.99/711,248.79 - Step 6: Final answer
x = 643,745.49
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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.