Finding the Fourth Proportional to 1,239,729.84, 1,858,872.24 and 480,684.58
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Solution
The fourth proportional to 1,239,729.84, 1,858,872.24 and 480,684.58 is: 720,746.72
Step by Step Solution
- Step 1: Write the proportion equation
1,239,729.84 : 1,858,872.24 = 480,684.58 : x - Step 2: Convert to fraction form
1,239,729.84/1,858,872.24 = 480,684.58/x - Step 3: Cross multiply
1,239,729.84x = 1,858,872.24 × 480,684.58 - Step 4: Simplify right side
1,239,729.84x = 893,531,217,310.88 - Step 5: Solve for x
x = 893,531,217,310.88/1,239,729.84 - Step 6: Final answer
x = 720,746.72
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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.