Finding the Fourth Proportional to 897,419.70, 1,346,129.55 and 543,125.70
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Solution
The fourth proportional to 897,419.70, 1,346,129.55 and 543,125.70 is: 814,688.55
Step by Step Solution
- Step 1: Write the proportion equation
897,419.70 : 1,346,129.55 = 543,125.70 : x - Step 2: Convert to fraction form
897,419.70/1,346,129.55 = 543,125.70/x - Step 3: Cross multiply
897,419.70x = 1,346,129.55 × 543,125.70 - Step 4: Simplify right side
897,419.70x = 731,117,554,134.44 - Step 5: Solve for x
x = 731,117,554,134.44/897,419.70 - Step 6: Final answer
x = 814,688.55
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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.