Finding the Fourth Proportional to 815,963.88, 1,126,009.68 and 453,388.65
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Solution
The fourth proportional to 815,963.88, 1,126,009.68 and 453,388.65 is: 625,664.96
Step by Step Solution
- Step 1: Write the proportion equation
815,963.88 : 1,126,009.68 = 453,388.65 : x - Step 2: Convert to fraction form
815,963.88/1,126,009.68 = 453,388.65/x - Step 3: Cross multiply
815,963.88x = 1,126,009.68 × 453,388.65 - Step 4: Simplify right side
815,963.88x = 510,520,008,702.13 - Step 5: Solve for x
x = 510,520,008,702.13/815,963.88 - Step 6: Final answer
x = 625,664.96
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.