Finding the Fourth Proportional to 558,683.70, 771,000.99 and 316,976.46
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Solution
The fourth proportional to 558,683.70, 771,000.99 and 316,976.46 is: 437,437.43
Step by Step Solution
- Step 1: Write the proportion equation
558,683.70 : 771,000.99 = 316,976.46 : x - Step 2: Convert to fraction form
558,683.70/771,000.99 = 316,976.46/x - Step 3: Cross multiply
558,683.70x = 771,000.99 × 316,976.46 - Step 4: Simplify right side
558,683.70x = 244,389,164,466.70 - Step 5: Solve for x
x = 244,389,164,466.70/558,683.70 - Step 6: Final answer
x = 437,437.43
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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.