Finding the Fourth Proportional to 910,415.70, 1,365,623.55 and 438,023.70
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Solution
The fourth proportional to 910,415.70, 1,365,623.55 and 438,023.70 is: 657,035.55
Step by Step Solution
- Step 1: Write the proportion equation
910,415.70 : 1,365,623.55 = 438,023.70 : x - Step 2: Convert to fraction form
910,415.70/1,365,623.55 = 438,023.70/x - Step 3: Cross multiply
910,415.70x = 1,365,623.55 × 438,023.70 - Step 4: Simplify right side
910,415.70x = 598,175,480,178.14 - Step 5: Solve for x
x = 598,175,480,178.14/910,415.70 - Step 6: Final answer
x = 657,035.55
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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.