Finding the Fourth Proportional to 769,117.68, 1,153,866.84 and 319,703.76
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Solution
The fourth proportional to 769,117.68, 1,153,866.84 and 319,703.76 is: 479,634.75
Step by Step Solution
- Step 1: Write the proportion equation
769,117.68 : 1,153,866.84 = 319,703.76 : x - Step 2: Convert to fraction form
769,117.68/1,153,866.84 = 319,703.76/x - Step 3: Cross multiply
769,117.68x = 1,153,866.84 × 319,703.76 - Step 4: Simplify right side
769,117.68x = 368,895,567,287.32 - Step 5: Solve for x
x = 368,895,567,287.32/769,117.68 - Step 6: Final answer
x = 479,634.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.