Finding the Fourth Proportional to 832,403.78, 1,248,606.27 and 201,318.20
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Solution
The fourth proportional to 832,403.78, 1,248,606.27 and 201,318.20 is: 301,977.45
Step by Step Solution
- Step 1: Write the proportion equation
832,403.78 : 1,248,606.27 = 201,318.20 : x - Step 2: Convert to fraction form
832,403.78/1,248,606.27 = 201,318.20/x - Step 3: Cross multiply
832,403.78x = 1,248,606.27 × 201,318.20 - Step 4: Simplify right side
832,403.78x = 251,367,166,785.11 - Step 5: Solve for x
x = 251,367,166,785.11/832,403.78 - Step 6: Final answer
x = 301,977.45
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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.