Finding the Fourth Proportional to 681,358.68, 939,266.82 and 436,317.48
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Solution
The fourth proportional to 681,358.68, 939,266.82 and 436,317.48 is: 601,472.53
Step by Step Solution
- Step 1: Write the proportion equation
681,358.68 : 939,266.82 = 436,317.48 : x - Step 2: Convert to fraction form
681,358.68/939,266.82 = 436,317.48/x - Step 3: Cross multiply
681,358.68x = 939,266.82 × 436,317.48 - Step 4: Simplify right side
681,358.68x = 409,818,531,950.01 - Step 5: Solve for x
x = 409,818,531,950.01/681,358.68 - Step 6: Final answer
x = 601,472.53
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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.