Finding the Fourth Proportional to 529,023.09, 730,051.68 and 287,305.74
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Solution
The fourth proportional to 529,023.09, 730,051.68 and 287,305.74 is: 396,481.82
Step by Step Solution
- Step 1: Write the proportion equation
529,023.09 : 730,051.68 = 287,305.74 : x - Step 2: Convert to fraction form
529,023.09/730,051.68 = 287,305.74/x - Step 3: Cross multiply
529,023.09x = 730,051.68 × 287,305.74 - Step 4: Simplify right side
529,023.09x = 209,748,038,160.64 - Step 5: Solve for x
x = 209,748,038,160.64/529,023.09 - Step 6: Final answer
x = 396,481.82
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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.