Finding the Fourth Proportional to 817,471.68, 1,226,259.36 and 256,528.32
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Solution
The fourth proportional to 817,471.68, 1,226,259.36 and 256,528.32 is: 384,808.75
Step by Step Solution
- Step 1: Write the proportion equation
817,471.68 : 1,226,259.36 = 256,528.32 : x - Step 2: Convert to fraction form
817,471.68/1,226,259.36 = 256,528.32/x - Step 3: Cross multiply
817,471.68x = 1,226,259.36 × 256,528.32 - Step 4: Simplify right side
817,471.68x = 314,570,253,505.08 - Step 5: Solve for x
x = 314,570,253,505.08/817,471.68 - Step 6: Final answer
x = 384,808.75
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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.