Finding the Fourth Proportional to 747,350.50, 1,031,365.56 and 407,840.62
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Solution
The fourth proportional to 747,350.50, 1,031,365.56 and 407,840.62 is: 562,831.99
Step by Step Solution
- Step 1: Write the proportion equation
747,350.50 : 1,031,365.56 = 407,840.62 : x - Step 2: Convert to fraction form
747,350.50/1,031,365.56 = 407,840.62/x - Step 3: Cross multiply
747,350.50x = 1,031,365.56 × 407,840.62 - Step 4: Simplify right side
747,350.50x = 420,632,769,437.05 - Step 5: Solve for x
x = 420,632,769,437.05/747,350.50 - Step 6: Final answer
x = 562,831.99
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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.