Finding the Fourth Proportional to 564,491.20, 778,863.84 and 319,479.28
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Solution
The fourth proportional to 564,491.20, 778,863.84 and 319,479.28 is: 440,805.56
Step by Step Solution
- Step 1: Write the proportion equation
564,491.20 : 778,863.84 = 319,479.28 : x - Step 2: Convert to fraction form
564,491.20/778,863.84 = 319,479.28/x - Step 3: Cross multiply
564,491.20x = 778,863.84 × 319,479.28 - Step 4: Simplify right side
564,491.20x = 248,830,858,821.24 - Step 5: Solve for x
x = 248,830,858,821.24/564,491.20 - Step 6: Final answer
x = 440,805.56
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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.