Finding the Fourth Proportional to 991,903.90, 1,368,840.99 and 539,204.62
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Solution
The fourth proportional to 991,903.90, 1,368,840.99 and 539,204.62 is: 744,109.77
Step by Step Solution
- Step 1: Write the proportion equation
991,903.90 : 1,368,840.99 = 539,204.62 : x - Step 2: Convert to fraction form
991,903.90/1,368,840.99 = 539,204.62/x - Step 3: Cross multiply
991,903.90x = 1,368,840.99 × 539,204.62 - Step 4: Simplify right side
991,903.90x = 738,085,385,853.37 - Step 5: Solve for x
x = 738,085,385,853.37/991,903.90 - Step 6: Final answer
x = 744,109.77
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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.