Finding the Fourth Proportional to 699,089.68, 1,046,379.12 and 361,665.68
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Solution
The fourth proportional to 699,089.68, 1,046,379.12 and 361,665.68 is: 541,331.72
Step by Step Solution
- Step 1: Write the proportion equation
699,089.68 : 1,046,379.12 = 361,665.68 : x - Step 2: Convert to fraction form
699,089.68/1,046,379.12 = 361,665.68/x - Step 3: Cross multiply
699,089.68x = 1,046,379.12 × 361,665.68 - Step 4: Simplify right side
699,089.68x = 378,439,415,972.60 - Step 5: Solve for x
x = 378,439,415,972.60/699,089.68 - Step 6: Final answer
x = 541,331.72
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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.