Finding the Fourth Proportional to 719,358.29, 1,078,640.70 and 292,784.63
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Solution
The fourth proportional to 719,358.29, 1,078,640.70 and 292,784.63 is: 439,015.46
Step by Step Solution
- Step 1: Write the proportion equation
719,358.29 : 1,078,640.70 = 292,784.63 : x - Step 2: Convert to fraction form
719,358.29/1,078,640.70 = 292,784.63/x - Step 3: Cross multiply
719,358.29x = 1,078,640.70 × 292,784.63 - Step 4: Simplify right side
719,358.29x = 315,809,413,408.21 - Step 5: Solve for x
x = 315,809,413,408.21/719,358.29 - Step 6: Final answer
x = 439,015.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.