Finding the Fourth Proportional to 819,283.94, 1,130,745.01 and 492,926.81
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Solution
The fourth proportional to 819,283.94, 1,130,745.01 and 492,926.81 is: 680,319.12
Step by Step Solution
- Step 1: Write the proportion equation
819,283.94 : 1,130,745.01 = 492,926.81 : x - Step 2: Convert to fraction form
819,283.94/1,130,745.01 = 492,926.81/x - Step 3: Cross multiply
819,283.94x = 1,130,745.01 × 492,926.81 - Step 4: Simplify right side
819,283.94x = 557,374,528,238.08 - Step 5: Solve for x
x = 557,374,528,238.08/819,283.94 - Step 6: Final answer
x = 680,319.12
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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.