Finding the Fourth Proportional to 687,836.56, 1,032,454.68 and 462,488.08
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Solution
The fourth proportional to 687,836.56, 1,032,454.68 and 462,488.08 is: 694,202.68
Step by Step Solution
- Step 1: Write the proportion equation
687,836.56 : 1,032,454.68 = 462,488.08 : x - Step 2: Convert to fraction form
687,836.56/1,032,454.68 = 462,488.08/x - Step 3: Cross multiply
687,836.56x = 1,032,454.68 × 462,488.08 - Step 4: Simplify right side
687,836.56x = 477,497,982,640.21 - Step 5: Solve for x
x = 477,497,982,640.21/687,836.56 - Step 6: Final answer
x = 694,202.68
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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.