Finding the Fourth Proportional to 638,995.45, 881,816.58 and 348,606.14
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Solution
The fourth proportional to 638,995.45, 881,816.58 and 348,606.14 is: 481,078.02
Step by Step Solution
- Step 1: Write the proportion equation
638,995.45 : 881,816.58 = 348,606.14 : x - Step 2: Convert to fraction form
638,995.45/881,816.58 = 348,606.14/x - Step 3: Cross multiply
638,995.45x = 881,816.58 × 348,606.14 - Step 4: Simplify right side
638,995.45x = 307,406,670,834.99 - Step 5: Solve for x
x = 307,406,670,834.99/638,995.45 - Step 6: Final answer
x = 481,078.02
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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.