Finding the Fourth Proportional to 503,887.80, 695,338.92 and 312,897.09
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Solution
The fourth proportional to 503,887.80, 695,338.92 and 312,897.09 is: 431,781.69
Step by Step Solution
- Step 1: Write the proportion equation
503,887.80 : 695,338.92 = 312,897.09 : x - Step 2: Convert to fraction form
503,887.80/695,338.92 = 312,897.09/x - Step 3: Cross multiply
503,887.80x = 695,338.92 × 312,897.09 - Step 4: Simplify right side
503,887.80x = 217,569,524,631.74 - Step 5: Solve for x
x = 217,569,524,631.74/503,887.80 - Step 6: Final answer
x = 431,781.69
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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.