Finding the Fourth Proportional to 528,091.93, 728,767.06 and 286,374.44
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Solution
The fourth proportional to 528,091.93, 728,767.06 and 286,374.44 is: 395,196.83
Step by Step Solution
- Step 1: Write the proportion equation
528,091.93 : 728,767.06 = 286,374.44 : x - Step 2: Convert to fraction form
528,091.93/728,767.06 = 286,374.44/x - Step 3: Cross multiply
528,091.93x = 728,767.06 × 286,374.44 - Step 4: Simplify right side
528,091.93x = 208,700,259,803.93 - Step 5: Solve for x
x = 208,700,259,803.93/528,091.93 - Step 6: Final answer
x = 395,196.83
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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.