Finding the Fourth Proportional to 528,259.56, 728,997.44 and 286,541.84
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Solution
The fourth proportional to 528,259.56, 728,997.44 and 286,541.84 is: 395,427.32
Step by Step Solution
- Step 1: Write the proportion equation
528,259.56 : 728,997.44 = 286,541.84 : x - Step 2: Convert to fraction form
528,259.56/728,997.44 = 286,541.84/x - Step 3: Cross multiply
528,259.56x = 728,997.44 × 286,541.84 - Step 4: Simplify right side
528,259.56x = 208,888,262,735.19 - Step 5: Solve for x
x = 208,888,262,735.19/528,259.56 - Step 6: Final answer
x = 395,427.32
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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.