Finding the Fourth Proportional to 519,745.23, 717,240.84 and 290,305.78
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Solution
The fourth proportional to 519,745.23, 717,240.84 and 290,305.78 is: 400,617.74
Step by Step Solution
- Step 1: Write the proportion equation
519,745.23 : 717,240.84 = 290,305.78 : x - Step 2: Convert to fraction form
519,745.23/717,240.84 = 290,305.78/x - Step 3: Cross multiply
519,745.23x = 717,240.84 × 290,305.78 - Step 4: Simplify right side
519,745.23x = 208,219,161,504.06 - Step 5: Solve for x
x = 208,219,161,504.06/519,745.23 - Step 6: Final answer
x = 400,617.74
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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.