Finding the Fourth Proportional to 943,105.42, 1,301,485.62 and 513,388.81
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Solution
The fourth proportional to 943,105.42, 1,301,485.62 and 513,388.81 is: 708,476.63
Step by Step Solution
- Step 1: Write the proportion equation
943,105.42 : 1,301,485.62 = 513,388.81 : x - Step 2: Convert to fraction form
943,105.42/1,301,485.62 = 513,388.81/x - Step 3: Cross multiply
943,105.42x = 1,301,485.62 × 513,388.81 - Step 4: Simplify right side
943,105.42x = 668,168,153,683.91 - Step 5: Solve for x
x = 668,168,153,683.91/943,105.42 - Step 6: Final answer
x = 708,476.63
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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.