Finding the Fourth Proportional to 545,678.25, 753,035.99 and 319,323.75
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Solution
The fourth proportional to 545,678.25, 753,035.99 and 319,323.75 is: 440,666.78
Step by Step Solution
- Step 1: Write the proportion equation
545,678.25 : 753,035.99 = 319,323.75 : x - Step 2: Convert to fraction form
545,678.25/753,035.99 = 319,323.75/x - Step 3: Cross multiply
545,678.25x = 753,035.99 × 319,323.75 - Step 4: Simplify right side
545,678.25x = 240,462,274,615.14 - Step 5: Solve for x
x = 240,462,274,615.14/545,678.25 - Step 6: Final answer
x = 440,666.78
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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.