Finding the Fourth Proportional to 1,021,049.68, 1,531,679.28 and 390,493.84
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Solution
The fourth proportional to 1,021,049.68, 1,531,679.28 and 390,493.84 is: 585,780.82
Step by Step Solution
- Step 1: Write the proportion equation
1,021,049.68 : 1,531,679.28 = 390,493.84 : x - Step 2: Convert to fraction form
1,021,049.68/1,531,679.28 = 390,493.84/x - Step 3: Cross multiply
1,021,049.68x = 1,531,679.28 × 390,493.84 - Step 4: Simplify right side
1,021,049.68x = 598,111,323,695.64 - Step 5: Solve for x
x = 598,111,323,695.64/1,021,049.68 - Step 6: Final answer
x = 585,780.82
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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.