Finding the Fourth Proportional to 611,472.70, 917,209.05 and 471,504.70
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Solution
The fourth proportional to 611,472.70, 917,209.05 and 471,504.70 is: 707,257.05
Step by Step Solution
- Step 1: Write the proportion equation
611,472.70 : 917,209.05 = 471,504.70 : x - Step 2: Convert to fraction form
611,472.70/917,209.05 = 471,504.70/x - Step 3: Cross multiply
611,472.70x = 917,209.05 × 471,504.70 - Step 4: Simplify right side
611,472.70x = 432,468,377,957.54 - Step 5: Solve for x
x = 432,468,377,957.54/611,472.70 - Step 6: Final answer
x = 707,257.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.