Finding the Fourth Proportional to 414,117.18, 621,189.60 and 114,572.70
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Solution
The fourth proportional to 414,117.18, 621,189.60 and 114,572.70 is: 171,862.88
Step by Step Solution
- Step 1: Write the proportion equation
414,117.18 : 621,189.60 = 114,572.70 : x - Step 2: Convert to fraction form
414,117.18/621,189.60 = 114,572.70/x - Step 3: Cross multiply
414,117.18x = 621,189.60 × 114,572.70 - Step 4: Simplify right side
414,117.18x = 71,171,369,683.92 - Step 5: Solve for x
x = 71,171,369,683.92/414,117.18 - Step 6: Final answer
x = 171,862.88
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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.