Finding the Fourth Proportional to 915,349.17, 1,263,181.68 and 507,449.99
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Solution
The fourth proportional to 915,349.17, 1,263,181.68 and 507,449.99 is: 700,280.88
Step by Step Solution
- Step 1: Write the proportion equation
915,349.17 : 1,263,181.68 = 507,449.99 : x - Step 2: Convert to fraction form
915,349.17/1,263,181.68 = 507,449.99/x - Step 3: Cross multiply
915,349.17x = 1,263,181.68 × 507,449.99 - Step 4: Simplify right side
915,349.17x = 641,001,524,568.28 - Step 5: Solve for x
x = 641,001,524,568.28/915,349.17 - Step 6: Final answer
x = 700,280.88
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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.