Finding the Fourth Proportional to 817,128.08, 1,223,509.08 and 479,891.60
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Solution
The fourth proportional to 817,128.08, 1,223,509.08 and 479,891.60 is: 718,555.32
Step by Step Solution
- Step 1: Write the proportion equation
817,128.08 : 1,223,509.08 = 479,891.60 : x - Step 2: Convert to fraction form
817,128.08/1,223,509.08 = 479,891.60/x - Step 3: Cross multiply
817,128.08x = 1,223,509.08 × 479,891.60 - Step 4: Simplify right side
817,128.08x = 587,151,730,015.73 - Step 5: Solve for x
x = 587,151,730,015.73/817,128.08 - Step 6: Final answer
x = 718,555.32
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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.