Finding the Fourth Proportional to 450,596.80, 621,811.26 and 257,000.14
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Solution
The fourth proportional to 450,596.80, 621,811.26 and 257,000.14 is: 354,653.17
Step by Step Solution
- Step 1: Write the proportion equation
450,596.80 : 621,811.26 = 257,000.14 : x - Step 2: Convert to fraction form
450,596.80/621,811.26 = 257,000.14/x - Step 3: Cross multiply
450,596.80x = 621,811.26 × 257,000.14 - Step 4: Simplify right side
450,596.80x = 159,805,580,928.03 - Step 5: Solve for x
x = 159,805,580,928.03/450,596.80 - Step 6: Final answer
x = 354,653.17
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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.