Finding the Fourth Proportional to 489,417.73, 734,125.17 and 134,432.09
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Solution
The fourth proportional to 489,417.73, 734,125.17 and 134,432.09 is: 201,647.74
Step by Step Solution
- Step 1: Write the proportion equation
489,417.73 : 734,125.17 = 134,432.09 : x - Step 2: Convert to fraction form
489,417.73/734,125.17 = 134,432.09/x - Step 3: Cross multiply
489,417.73x = 734,125.17 × 134,432.09 - Step 4: Simplify right side
489,417.73x = 98,689,980,511.17 - Step 5: Solve for x
x = 98,689,980,511.17/489,417.73 - Step 6: Final answer
x = 201,647.74
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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.