Finding the Fourth Proportional to 539,128.64, 743,965.62 and 297,411.68
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Solution
The fourth proportional to 539,128.64, 743,965.62 and 297,411.68 is: 410,410.52
Step by Step Solution
- Step 1: Write the proportion equation
539,128.64 : 743,965.62 = 297,411.68 : x - Step 2: Convert to fraction form
539,128.64/743,965.62 = 297,411.68/x - Step 3: Cross multiply
539,128.64x = 743,965.62 × 297,411.68 - Step 4: Simplify right side
539,128.64x = 221,264,064,906.44 - Step 5: Solve for x
x = 221,264,064,906.44/539,128.64 - Step 6: Final answer
x = 410,410.52
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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.