Finding the Fourth Proportional to 519,147.24, 716,421.83 and 289,702.09
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Solution
The fourth proportional to 519,147.24, 716,421.83 and 289,702.09 is: 399,788.12
Step by Step Solution
- Step 1: Write the proportion equation
519,147.24 : 716,421.83 = 289,702.09 : x - Step 2: Convert to fraction form
519,147.24/716,421.83 = 289,702.09/x - Step 3: Cross multiply
519,147.24x = 716,421.83 × 289,702.09 - Step 4: Simplify right side
519,147.24x = 207,548,900,405.83 - Step 5: Solve for x
x = 207,548,900,405.83/519,147.24 - Step 6: Final answer
x = 399,788.12
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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.