Finding the Fourth Proportional to 663,357.42, 915,457.95 and 376,926.06
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Solution
The fourth proportional to 663,357.42, 915,457.95 and 376,926.06 is: 520,172.00
Step by Step Solution
- Step 1: Write the proportion equation
663,357.42 : 915,457.95 = 376,926.06 : x - Step 2: Convert to fraction form
663,357.42/915,457.95 = 376,926.06/x - Step 3: Cross multiply
663,357.42x = 915,457.95 × 376,926.06 - Step 4: Simplify right side
663,357.42x = 345,059,958,189.18 - Step 5: Solve for x
x = 345,059,958,189.18/663,357.42 - Step 6: Final answer
x = 520,172.00
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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.