Finding the Fourth Proportional to 658,406.21, 988,024.48 and 258,995.08
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Solution
The fourth proportional to 658,406.21, 988,024.48 and 258,995.08 is: 388,655.93
Step by Step Solution
- Step 1: Write the proportion equation
658,406.21 : 988,024.48 = 258,995.08 : x - Step 2: Convert to fraction form
658,406.21/988,024.48 = 258,995.08/x - Step 3: Cross multiply
658,406.21x = 988,024.48 × 258,995.08 - Step 4: Simplify right side
658,406.21x = 255,893,476,122.01 - Step 5: Solve for x
x = 255,893,476,122.01/658,406.21 - Step 6: Final answer
x = 388,655.93
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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.