Finding the Fourth Proportional to 745,528.26, 1,118,331.29 and 213,129.84
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Solution
The fourth proportional to 745,528.26, 1,118,331.29 and 213,129.84 is: 319,705.88
Step by Step Solution
- Step 1: Write the proportion equation
745,528.26 : 1,118,331.29 = 213,129.84 : x - Step 2: Convert to fraction form
745,528.26/1,118,331.29 = 213,129.84/x - Step 3: Cross multiply
745,528.26x = 1,118,331.29 × 213,129.84 - Step 4: Simplify right side
745,528.26x = 238,349,768,904.69 - Step 5: Solve for x
x = 238,349,768,904.69/745,528.26 - Step 6: Final answer
x = 319,705.88
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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.