Finding the Fourth Proportional to 838,511.43, 1,157,120.48 and 465,973.08
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Solution
The fourth proportional to 838,511.43, 1,157,120.48 and 465,973.08 is: 643,028.79
Step by Step Solution
- Step 1: Write the proportion equation
838,511.43 : 1,157,120.48 = 465,973.08 : x - Step 2: Convert to fraction form
838,511.43/1,157,120.48 = 465,973.08/x - Step 3: Cross multiply
838,511.43x = 1,157,120.48 × 465,973.08 - Step 4: Simplify right side
838,511.43x = 539,186,991,666.81 - Step 5: Solve for x
x = 539,186,991,666.81/838,511.43 - Step 6: Final answer
x = 643,028.79
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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.