Finding the Fourth Proportional to 621,000.15, 857,070.97 and 349,090.44
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Solution
The fourth proportional to 621,000.15, 857,070.97 and 349,090.44 is: 481,795.83
Step by Step Solution
- Step 1: Write the proportion equation
621,000.15 : 857,070.97 = 349,090.44 : x - Step 2: Convert to fraction form
621,000.15/857,070.97 = 349,090.44/x - Step 3: Cross multiply
621,000.15x = 857,070.97 × 349,090.44 - Step 4: Simplify right side
621,000.15x = 299,195,282,028.53 - Step 5: Solve for x
x = 299,195,282,028.53/621,000.15 - Step 6: Final answer
x = 481,795.83
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1.5x scale
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.