Finding the Fourth Proportional to 742,602.24, 1,024,792.26 and 403,070.64
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Solution
The fourth proportional to 742,602.24, 1,024,792.26 and 403,070.64 is: 556,238.12
Step by Step Solution
- Step 1: Write the proportion equation
742,602.24 : 1,024,792.26 = 403,070.64 : x - Step 2: Convert to fraction form
742,602.24/1,024,792.26 = 403,070.64/x - Step 3: Cross multiply
742,602.24x = 1,024,792.26 × 403,070.64 - Step 4: Simplify right side
742,602.24x = 413,063,672,105.25 - Step 5: Solve for x
x = 413,063,672,105.25/742,602.24 - Step 6: Final answer
x = 556,238.12
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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.