Finding the Fourth Proportional to 923,921.60, 1,385,921.28 and 292,821.44
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Solution
The fourth proportional to 923,921.60, 1,385,921.28 and 292,821.44 is: 439,244.48
Step by Step Solution
- Step 1: Write the proportion equation
923,921.60 : 1,385,921.28 = 292,821.44 : x - Step 2: Convert to fraction form
923,921.60/1,385,921.28 = 292,821.44/x - Step 3: Cross multiply
923,921.60x = 1,385,921.28 × 292,821.44 - Step 4: Simplify right side
923,921.60x = 405,827,464,936.24 - Step 5: Solve for x
x = 405,827,464,936.24/923,921.60 - Step 6: Final answer
x = 439,244.48
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1.5x scale
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.