Finding the Fourth Proportional to 638,417.76, 955,937.19 and 385,359.99
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Solution
The fourth proportional to 638,417.76, 955,937.19 and 385,359.99 is: 577,020.20
Step by Step Solution
- Step 1: Write the proportion equation
638,417.76 : 955,937.19 = 385,359.99 : x - Step 2: Convert to fraction form
638,417.76/955,937.19 = 385,359.99/x - Step 3: Cross multiply
638,417.76x = 955,937.19 × 385,359.99 - Step 4: Simplify right side
638,417.76x = 368,379,945,979.03 - Step 5: Solve for x
x = 368,379,945,979.03/638,417.76 - Step 6: Final answer
x = 577,020.20
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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.