Finding the Fourth Proportional to 842,408.84, 1,162,523.95 and 479,866.28
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Solution
The fourth proportional to 842,408.84, 1,162,523.95 and 479,866.28 is: 662,215.32
Step by Step Solution
- Step 1: Write the proportion equation
842,408.84 : 1,162,523.95 = 479,866.28 : x - Step 2: Convert to fraction form
842,408.84/1,162,523.95 = 479,866.28/x - Step 3: Cross multiply
842,408.84x = 1,162,523.95 × 479,866.28 - Step 4: Simplify right side
842,408.84x = 557,856,036,285.12 - Step 5: Solve for x
x = 557,856,036,285.12/842,408.84 - Step 6: Final answer
x = 662,215.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.