Finding the Fourth Proportional to 598,847.20, 898,270.80 and 431,541.70
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Solution
The fourth proportional to 598,847.20, 898,270.80 and 431,541.70 is: 647,312.55
Step by Step Solution
- Step 1: Write the proportion equation
598,847.20 : 898,270.80 = 431,541.70 : x - Step 2: Convert to fraction form
598,847.20/898,270.80 = 431,541.70/x - Step 3: Cross multiply
598,847.20x = 898,270.80 × 431,541.70 - Step 4: Simplify right side
598,847.20x = 387,641,308,092.36 - Step 5: Solve for x
x = 387,641,308,092.36/598,847.20 - Step 6: Final answer
x = 647,312.55
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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.