Finding the Fourth Proportional to 918,201.13, 1,377,381.07 and 253,353.13
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Solution
The fourth proportional to 918,201.13, 1,377,381.07 and 253,353.13 is: 380,051.60
Step by Step Solution
- Step 1: Write the proportion equation
918,201.13 : 1,377,381.07 = 253,353.13 : x - Step 2: Convert to fraction form
918,201.13/1,377,381.07 = 253,353.13/x - Step 3: Cross multiply
918,201.13x = 1,377,381.07 × 253,353.13 - Step 4: Simplify right side
918,201.13x = 348,963,805,287.25 - Step 5: Solve for x
x = 348,963,805,287.25/918,201.13 - Step 6: Final answer
x = 380,051.60
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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.