Finding the Fourth Proportional to 939,869.74, 1,296,797.87 and 531,971.53
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Solution
The fourth proportional to 939,869.74, 1,296,797.87 and 531,971.53 is: 733,994.85
Step by Step Solution
- Step 1: Write the proportion equation
939,869.74 : 1,296,797.87 = 531,971.53 : x - Step 2: Convert to fraction form
939,869.74/1,296,797.87 = 531,971.53/x - Step 3: Cross multiply
939,869.74x = 1,296,797.87 × 531,971.53 - Step 4: Simplify right side
939,869.74x = 689,859,545,092.58 - Step 5: Solve for x
x = 689,859,545,092.58/939,869.74 - Step 6: Final answer
x = 733,994.85
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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.