Finding the Fourth Proportional to 676,815.76, 934,430.44 and 435,517.68
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Solution
The fourth proportional to 676,815.76, 934,430.44 and 435,517.68 is: 601,287.68
Step by Step Solution
- Step 1: Write the proportion equation
676,815.76 : 934,430.44 = 435,517.68 : x - Step 2: Convert to fraction form
676,815.76/934,430.44 = 435,517.68/x - Step 3: Cross multiply
676,815.76x = 934,430.44 × 435,517.68 - Step 4: Simplify right side
676,815.76x = 406,960,977,350.18 - Step 5: Solve for x
x = 406,960,977,350.18/676,815.76 - Step 6: Final answer
x = 601,287.68
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1.5x scale
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.