Finding the Fourth Proportional to 664,490.18, 918,195.95 and 473,171.42
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Solution
The fourth proportional to 664,490.18, 918,195.95 and 473,171.42 is: 653,830.70
Step by Step Solution
- Step 1: Write the proportion equation
664,490.18 : 918,195.95 = 473,171.42 : x - Step 2: Convert to fraction form
664,490.18/918,195.95 = 473,171.42/x - Step 3: Cross multiply
664,490.18x = 918,195.95 × 473,171.42 - Step 4: Simplify right side
664,490.18x = 434,464,079,133.89 - Step 5: Solve for x
x = 434,464,079,133.89/664,490.18 - Step 6: Final answer
x = 653,830.70
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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.