Finding the Fourth Proportional to 507,135.94, 699,869.46 and 280,781.44
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Solution
The fourth proportional to 507,135.94, 699,869.46 and 280,781.44 is: 387,490.49
Step by Step Solution
- Step 1: Write the proportion equation
507,135.94 : 699,869.46 = 280,781.44 : x - Step 2: Convert to fraction form
507,135.94/699,869.46 = 280,781.44/x - Step 3: Cross multiply
507,135.94x = 699,869.46 × 280,781.44 - Step 4: Simplify right side
507,135.94x = 196,510,354,094.08 - Step 5: Solve for x
x = 196,510,354,094.08/507,135.94 - Step 6: Final answer
x = 387,490.49
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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.