Finding the Fourth Proportional to 518,816.25, 715,977.36 and 292,461.75
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Solution
The fourth proportional to 518,816.25, 715,977.36 and 292,461.75 is: 403,603.38
Step by Step Solution
- Step 1: Write the proportion equation
518,816.25 : 715,977.36 = 292,461.75 : x - Step 2: Convert to fraction form
518,816.25/715,977.36 = 292,461.75/x - Step 3: Cross multiply
518,816.25x = 715,977.36 × 292,461.75 - Step 4: Simplify right side
518,816.25x = 209,395,991,665.98 - Step 5: Solve for x
x = 209,395,991,665.98/518,816.25 - Step 6: Final answer
x = 403,603.38
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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.