Finding the Fourth Proportional to 529,678.23, 730,970.10 and 287,977.08
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Solution
The fourth proportional to 529,678.23, 730,970.10 and 287,977.08 is: 397,416.06
Step by Step Solution
- Step 1: Write the proportion equation
529,678.23 : 730,970.10 = 287,977.08 : x - Step 2: Convert to fraction form
529,678.23/730,970.10 = 287,977.08/x - Step 3: Cross multiply
529,678.23x = 730,970.10 × 287,977.08 - Step 4: Simplify right side
529,678.23x = 210,502,634,965.31 - Step 5: Solve for x
x = 210,502,634,965.31/529,678.23 - Step 6: Final answer
x = 397,416.06
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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.