Finding the Fourth Proportional to 722,827.80, 1,084,241.70 and 349,579.80
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Solution
The fourth proportional to 722,827.80, 1,084,241.70 and 349,579.80 is: 524,369.70
Step by Step Solution
- Step 1: Write the proportion equation
722,827.80 : 1,084,241.70 = 349,579.80 : x - Step 2: Convert to fraction form
722,827.80/1,084,241.70 = 349,579.80/x - Step 3: Cross multiply
722,827.80x = 1,084,241.70 × 349,579.80 - Step 4: Simplify right side
722,827.80x = 379,028,996,637.66 - Step 5: Solve for x
x = 379,028,996,637.66/722,827.80 - Step 6: Final answer
x = 524,369.70
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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.