Finding the Fourth Proportional to 936,840.42, 1,292,840.55 and 507,119.22
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Solution
The fourth proportional to 936,840.42, 1,292,840.55 and 507,119.22 is: 699,824.94
Step by Step Solution
- Step 1: Write the proportion equation
936,840.42 : 1,292,840.55 = 507,119.22 : x - Step 2: Convert to fraction form
936,840.42/1,292,840.55 = 507,119.22/x - Step 3: Cross multiply
936,840.42x = 1,292,840.55 × 507,119.22 - Step 4: Simplify right side
936,840.42x = 655,624,291,300.37 - Step 5: Solve for x
x = 655,624,291,300.37/936,840.42 - Step 6: Final answer
x = 699,824.94
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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.