Finding the Fourth Proportional to 611,963.16, 917,944.56 and 191,239.08
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Solution
The fourth proportional to 611,963.16, 917,944.56 and 191,239.08 is: 286,858.56
Step by Step Solution
- Step 1: Write the proportion equation
611,963.16 : 917,944.56 = 191,239.08 : x - Step 2: Convert to fraction form
611,963.16/917,944.56 = 191,239.08/x - Step 3: Cross multiply
611,963.16x = 917,944.56 × 191,239.08 - Step 4: Simplify right side
611,963.16x = 175,546,873,145.41 - Step 5: Solve for x
x = 175,546,873,145.41/611,963.16 - Step 6: Final answer
x = 286,858.56
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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.