Finding the Fourth Proportional to 450,312.21, 621,458.42 and 259,387.11
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Solution
The fourth proportional to 450,312.21, 621,458.42 and 259,387.11 is: 357,970.09
Step by Step Solution
- Step 1: Write the proportion equation
450,312.21 : 621,458.42 = 259,387.11 : x - Step 2: Convert to fraction form
450,312.21/621,458.42 = 259,387.11/x - Step 3: Cross multiply
450,312.21x = 621,458.42 × 259,387.11 - Step 4: Simplify right side
450,312.21x = 161,198,302,252.03 - Step 5: Solve for x
x = 161,198,302,252.03/450,312.21 - Step 6: Final answer
x = 357,970.09
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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.