Finding the Fourth Proportional to 780,326.41, 1,170,489.62 and 219,360.91
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Solution
The fourth proportional to 780,326.41, 1,170,489.62 and 219,360.91 is: 329,041.36
Step by Step Solution
- Step 1: Write the proportion equation
780,326.41 : 1,170,489.62 = 219,360.91 : x - Step 2: Convert to fraction form
780,326.41/1,170,489.62 = 219,360.91/x - Step 3: Cross multiply
780,326.41x = 1,170,489.62 × 219,360.91 - Step 4: Simplify right side
780,326.41x = 256,759,661,239.50 - Step 5: Solve for x
x = 256,759,661,239.50/780,326.41 - Step 6: Final answer
x = 329,041.36
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.