Finding the Fourth Proportional to 638,276.90, 957,415.35 and 354,841.70
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Solution
The fourth proportional to 638,276.90, 957,415.35 and 354,841.70 is: 532,262.55
Step by Step Solution
- Step 1: Write the proportion equation
638,276.90 : 957,415.35 = 354,841.70 : x - Step 2: Convert to fraction form
638,276.90/957,415.35 = 354,841.70/x - Step 3: Cross multiply
638,276.90x = 957,415.35 × 354,841.70 - Step 4: Simplify right side
638,276.90x = 339,730,890,400.10 - Step 5: Solve for x
x = 339,730,890,400.10/638,276.90 - Step 6: Final answer
x = 532,262.55
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1.5x scale
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.