Finding the Fourth Proportional to 742,557.24, 1,024,729.92 and 403,025.58
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Solution
The fourth proportional to 742,557.24, 1,024,729.92 and 403,025.58 is: 556,175.80
Step by Step Solution
- Step 1: Write the proportion equation
742,557.24 : 1,024,729.92 = 403,025.58 : x - Step 2: Convert to fraction form
742,557.24/1,024,729.92 = 403,025.58/x - Step 3: Cross multiply
742,557.24x = 1,024,729.92 × 403,025.58 - Step 4: Simplify right side
742,557.24x = 412,992,370,351.35 - Step 5: Solve for x
x = 412,992,370,351.35/742,557.24 - Step 6: Final answer
x = 556,175.80
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1.5x scale
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.