Finding the Fourth Proportional to 695,534.68, 1,043,181.56 and 209,209.78
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Solution
The fourth proportional to 695,534.68, 1,043,181.56 and 209,209.78 is: 313,778.44
Step by Step Solution
- Step 1: Write the proportion equation
695,534.68 : 1,043,181.56 = 209,209.78 : x - Step 2: Convert to fraction form
695,534.68/1,043,181.56 = 209,209.78/x - Step 3: Cross multiply
695,534.68x = 1,043,181.56 × 209,209.78 - Step 4: Simplify right side
695,534.68x = 218,243,786,494.66 - Step 5: Solve for x
x = 218,243,786,494.66/695,534.68 - Step 6: Final answer
x = 313,778.44
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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.