Finding the Fourth Proportional to 529,655.47, 730,915.93 and 287,944.08
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Solution
The fourth proportional to 529,655.47, 730,915.93 and 287,944.08 is: 397,358.14
Step by Step Solution
- Step 1: Write the proportion equation
529,655.47 : 730,915.93 = 287,944.08 : x - Step 2: Convert to fraction form
529,655.47/730,915.93 = 287,944.08/x - Step 3: Cross multiply
529,655.47x = 730,915.93 × 287,944.08 - Step 4: Simplify right side
529,655.47x = 210,462,912,640.19 - Step 5: Solve for x
x = 210,462,912,640.19/529,655.47 - Step 6: Final answer
x = 397,358.14
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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.