Finding the Fourth Proportional to 1,559,129.19, 2,338,915.47 and 479,731.24
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Solution
The fourth proportional to 1,559,129.19, 2,338,915.47 and 479,731.24 is: 719,665.07
Step by Step Solution
- Step 1: Write the proportion equation
1,559,129.19 : 2,338,915.47 = 479,731.24 : x - Step 2: Convert to fraction form
1,559,129.19/2,338,915.47 = 479,731.24/x - Step 3: Cross multiply
1,559,129.19x = 2,338,915.47 × 479,731.24 - Step 4: Simplify right side
1,559,129.19x = 1,122,050,818,678.28 - Step 5: Solve for x
x = 1,122,050,818,678.28/1,559,129.19 - Step 6: Final answer
x = 719,665.07
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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.