Finding the Fourth Proportional to 1,185,814.08, 1,778,484.60 and 427,634.64
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Solution
The fourth proportional to 1,185,814.08, 1,778,484.60 and 427,634.64 is: 641,366.66
Step by Step Solution
- Step 1: Write the proportion equation
1,185,814.08 : 1,778,484.60 = 427,634.64 : x - Step 2: Convert to fraction form
1,185,814.08/1,778,484.60 = 427,634.64/x - Step 3: Cross multiply
1,185,814.08x = 1,778,484.60 × 427,634.64 - Step 4: Simplify right side
1,185,814.08x = 760,541,621,666.54 - Step 5: Solve for x
x = 760,541,621,666.54/1,185,814.08 - Step 6: Final answer
x = 641,366.66
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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.