Finding the Fourth Proportional to 607,489.70, 911,234.55 and 607,489.70
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Solution
The fourth proportional to 607,489.70, 911,234.55 and 607,489.70 is: 911,234.55
Step by Step Solution
- Step 1: Write the proportion equation
607,489.70 : 911,234.55 = 607,489.70 : x - Step 2: Convert to fraction form
607,489.70/911,234.55 = 607,489.70/x - Step 3: Cross multiply
607,489.70x = 911,234.55 × 607,489.70 - Step 4: Simplify right side
607,489.70x = 553,565,603,409.14 - Step 5: Solve for x
x = 553,565,603,409.14/607,489.70 - Step 6: Final answer
x = 911,234.55
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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.